Question: Who was named 2003 Rookie of the Year and client of Matt Sosnick?

Context paragraphs:
Aaron Sandilands: Aaron Sandilands (born 6 December 1982) is an Australian rules footballer who plays for the Fremantle Football Club in the Australian Football League (AFL).  Originally from Mount Barker, a small town in the Great Southern region of Western Australia, Sandilands played with the East Fremantle Football Club in the West Australian Football League (WAFL), before being rookie listed by Fremantle in the 2002 Rookie Draft.  Upgraded from the rookie list at the end of the 2002 season, he made his senior debut for the club in round one of the 2003 season.  At 211 cm tall, and with a peak weight of 120 kg , Sandilands became the heaviest and equal-tallest player to ever play in the AFL.  Due to his height, Sandilands plays almost exclusively as a ruckman, occasionally resting in the forward line.  At times, he has been described as the best ruckman in the competition, and was named in the All-Australian team in three consecutive years between 2008 and 2010.  Sandilands is a dual Doig Medallist as Fremantle's best and fairest player, won in 2009 and 2015.

Alvan Adams: Alvan Leigh Adams (born July 19, 1954) is an American retired professional basketball player.  After starring at the University of Oklahoma, the 6'9" (2.06 m) power forward/center was selected by the Phoenix Suns with the 4th pick of the 1975 NBA draft.  Adams was a rookie on a Suns team whose season included an improbable playoff run that took them all the way to the 1976 NBA Finals.  In the same year, he was selected to play in the All-Star Game and won the NBA Rookie of the Year Award as well as being named to the All-NBA Rookie Team.  Adams spent his entire career with the Suns and retired in 1988 as the second all-time Suns scorer with 13,910 career points.

Kyle Larson: Kyle Miyata Larson (born July 31, 1992) is an American professional stock car racing driver.  He currently competes full-time in the Monster Energy NASCAR Cup Series, driving the No. 42 Chevrolet SS for Chip Ganassi Racing, and part-time in the Xfinity Series, driving the No. 42 Chevrolet Camaro for CGR.  He was named the 2012 K&N Pro Series East Rookie of the Year and champion, he is also the 2013 Rookie of the Year in the NASCAR Nationwide Series, as well as an overall winner of the 2015 24 Hours of Daytona.  He was the 2014 Cup Series Rookie of the Year.

1987 Oakland Athletics season: The Oakland Athletics' 1987 season involved the A's finishing 3rd in the American League West with a record of 81 wins and 81 losses.  Mark McGwire set a rookie record by hitting 49 home runs.  At the beginning of the season, the word "Athletics" returned, in script lettering, to the front of the team's jerseys.  Former A's owner, Charles O. Finley banned the word "Athletics" from the club's name in the past because he felt that name was too closely associated with former Philadelphia Athletics owner Connie Mack.  In his first full Major League season, Mark McGwire hit 49 home runs, a single-season record for a rookie; he was named the American League Rookie of the Year.  McGwire would be the first American League rookie since Al Rosen of the Cleveland Indians in 1950 to lead the American League in home runs.  The 1987 season also saw the return of Reggie Jackson to Oakland.

Jonathan Smith (racing driver): Jonathan Smith (born November 3, 1986) is a racecar driver from Beacon Falls, Connecticut.  He started racing at the age of five on dirtbikes, by the age of 12 he was racing BMX bicycles, where he was crowned State Champion in his first year.  Smith began racing go-karts at the age of 14 where he competed in the Nite Series at Poughkeepsie Speedway in New York proving himself in his first year by finishing in second place in both series' championships.  In his second year of competition, Smith moved to Stock Light division, Poughkeepsie Speedway's most competitive go-karting class, where he took home the championship.  In 2001, Smith decided to take a break from racing to focus on high school.  When he returned to racing the spring of 2006, he entered into automobile racing in the Dodge Weekly Series driving a late-model in the NASCAR sanctioned division.  In his rookie season, with the help of Ryan Posocco Racing, Smith’s team ran at Stafford Motor Speedway in Stafford Springs, Connecticut and finished in the top third of the championship race, and as the runner up in the Rookie of the Year competition.  Smith's talent did not go unnoticed, and he was selected to participate in the NASCAR Drive for Diversity program where he was placed with veteran Barney McRae and Motion Racing in 2007.  During this season Smith drove in the NASCAR Busch East Grand National Series, NASCAR’s top developmental racing series.  Smith finished the year 16th in the point standings, scoring a top 5 finish in only his second series race.  In 2008, Smith joined Troy Williams Racing with Sean Watts to pilot their #21 Aqua Pure Health/Raintree Vacations Dodge in the newly named Camping World Series East (formerly Busch East, currently K&N Pro Series).  He also drove in the NASCAR Drive for Diversity program for a second season that year.  In the 2009 season, Smith was brought on by two time series champion Mike Olson and Fadden Racing.  Since 2010, Jonathan has driven a limited schedule, but is poised to continue his racing success.

Dontrelle Willis: Dontrelle Wayne Willis (born January 12, 1982), nicknamed "The D-Train", is an American former professional baseball pitcher.  He played in Major League Baseball (MLB) for the Florida Marlins, Detroit Tigers, Arizona Diamondbacks and Cincinnati Reds.  Willis was notable for his success during his first few years in the MLB and for his unconventional pitching style, which included a high leg kick and exaggerated twisting away from the batter.  He was named the 2003 National League Rookie of the Year.

Matt Sosnick: Matt Sosnick is a San Francisco-based sports agent.  He attended Burlingame High School and the University of Southern California.  His business partners are Paul Cobbe and Adam Karon.  Their client list includes Major League Baseball All-Star and 2003 Rookie of the Year Dontrelle Willis; All-Stars Josh Johnson, Jay Bruce, and Matt Moore; Ricky Nolasco; Freddy Sanchez; Josh Willingham; and Ryan Doumit.

Sporting News Rookie of the Year Award: The "Sporting News" Rookie of the Year Award is an annual Major League Baseball (MLB) award established in 1946 by "Sporting News".  For the first three years (1946–48) and again in 1950, there was a single award.  In 1949 and since 1951, the award has been given to a rookie from both the American League and National League.  In 1961 and from 1963 through 2003, "Sporting News" split the rookie award into two separate categories, Rookie Pitcher of the Year and Rookie Player of the Year (in each league).  In 2004 those two awards were discontinued, in favor of a single award, one for each league.

Mark Nicoski: Mark Nicoski (born 24 November 1983) is a former Australian rules footballer who previously played with the West Coast Eagles in the Australian Football League (AFL).  From Perth, Western Australia, Nicoski first played for Subiaco in the West Australian Football League (WAFL), before being recruited by West Coast in the 2003 Rookie Draft.  Promoted from the rookie list prior to the 2004 season, he made his debut for the club in round five, and became a regular in the side the following season as a half-back flanker, playing in West Coast's grand final loss to Sydney .  In 2006, Nicoski fractured an ankle midway through the season, and thus missed out on playing in the club's premiership victory.  Over the next seasons, shoulder and groin injuries restricted his time on the field, but in 2011 he took up a different role in the team, kicking 41 goals playing as a forward.  Nicoski also represented Australia in the 2011 International Rules Series.  However, after serious injuries, including a torn hamstring during the final of the 2012 pre-season tournament, he did not play at AFL level over the following two seasons.  Having played 112 games for West Coast, Nicoski retired from the AFL at the end of the 2013 season.

Sweet Attention: Sweet Attention is the third full-length studio album by American indie rock band Rookie of the Year.  The follow-up to 2006's "The Goodnight Moon" was released on 5 August 2008.  It is the band's fourth release and third studio album on label 111 Records.  The album was produced by Matt Malpass.  Prior to release of the album, Rookie of the Year posted "What is Love" and "Summer" up on their MySpace page.

Supporting paragraphs: Matt Sosnick Dontrelle Willis
Answer: Dontrelle Willis