Context_1 : Mackensie Alexander (born November 12, 1993) is an American football cornerback for the Minnesota Vikings of the National Football League (NFL). Alexander played college football at Clemson University, where after redshirting his freshman season, became a key role player on the Tigers' defense his second season, earning freshman All-American honors. Entering his sophomore season, he was a key part of the Tigers's defense, which was ranked among the best in all of college football. Alexander was drafted by the Vikings in the second round, 54th overall of the 2016 NFL Draft. Context_2 : Adrian Lewis Peterson (born March 21, 1985) is an American football running back for the New Orleans Saints of the National Football League (NFL). He played college football at Oklahoma and was drafted by the Minnesota Vikings seventh overall in the 2007 NFL Draft. Peterson set the NCAA freshman rushing record with 1,925 yards as a true freshman during the 2004 season. As a unanimous first-team All-American, he became the first freshman to finish as the runner-up in the Heisman Trophy balloting. Peterson finished his college football career as the Sooners' third all-time leading rusher. Context_3 : Richard "Ricky" Powers (born November 30, 1970) is a former running back in the National Football League (NFL) for the Cleveland Browns and a former University of Michigan Wolverines football co-captain. In the NFL, he had a brief career with the Browns during their final season before they relocated to become the Baltimore Ravens after starring for the Wolverines. His career ended due to being lost in the shuffle when the Browns moved to Baltimore and changed coaching staffs. In college, he set the Michigan football freshman rushing record that stood fourteen seasons and as a sophomore was the leading rusher for the team during Desmond Howard's Heisman Trophy-winning season. At Michigan, he was a member of three consecutive Big Ten Conference football champions. In high school, he was the Parade All-American star running back of the two-time Ohio High School Athletic Association (OHSAA) football championship team at Buchtel High School, where he has returned to coach baseball and football. Context_4 : Taylor Curtis Lewan (born July 21, 1991) is an American football offensive tackle for the Tennessee Titans of the National Football League (NFL). He was drafted by the Titans in the first round of the 2014 NFL Draft. He played college football at Michigan. Lewan redshirted his freshman season in 2009. In 2010, he took over the starting left tackle role from Mark Huyge in the fourth game versus Bowling Green. He was second team All-Big Ten Conference following the 2011 Big Ten Conference football season for the 2011 team. He was named the 2012 and 2013 Big Ten Conference Offensive Lineman of the Year and a 2012 All-Big Ten first team selection by both the coaches and the media for the 2012 team. Taylor was named First Team All-American by the Walter Camp Organization in 2012. He completed his redshirt senior season for the 2013 team. Context_5 : A running back (RB) is an American and Canadian football position, a member of the offensive backfield. The primary roles of a running back are to receive handoffs from the quarterback for a rushing play, to catch passes from out of the backfield, and to block. There are usually one or two running backs on the field for a given play, depending on the offensive formation. A running back may be a halfback (in certain contexts also referred to as a tailback) or a fullback. A running back will sometimes be called a "feature back" if he is the team's starting running back. Context_6 : Ty Isaac (born October 16, 1994) is an American football running back for the Michigan Wolverines. He played his freshman season for the 2013 USC Trojans before transferring to the University of Michigan. Context_7 : Willie White (born August 20, 1962) is an American former National Basketball Association (NBA) player. Willie attended University of Tennessee at Chattanooga (UTC). In his freshman season, Willie averaged 11.8 points per game. UTC also won the Southern Conference championship and made their first NCAA Men's Division I Basketball Tournament appearance. In Willie's sophomore season at UTC, he averaged 15.8 points per game, leading UTC to a second consecutive Southern Conference championship. Willie averaged 18.4 points per game his junior season, also leading UTC to a third straight Southern Conference championship. This was good enough for Willie to be named the Southern Conference Men's Basketball Player of the Year. He averaged 18 points a game his senior season, but lost in the Southern Conference Championship game in double overtime to Marshall. White was invited to the U.S. Olympic team trials in Bloomington, Ind., in 1984. Willie was drafted with eighteenth pick in the second round of the 1984 NBA Draft by the Denver Nuggets. In Willie's two seasons with the Nuggets, he averaged 3.7 points, 1 rebound and 1 assist per game. Context_8 : Darrel Williams (born April 15, 1995 in Marrero, Louisiana) is an American football running back/fullback who plays for the LSU Tigers. Williams stands at 6'0 and weighs in at 217 pounds. Williams was a 4-star recruit coming out of high school. Darrel Williams had offers from Arizona State, Wisconsin, Tennessee, and Florida. In William's senior season in high school he suppressed 2,000 yards and 25 touchdowns. In William's freshman season at LSU he came in an joined a four running back rotation. In the 2015 LSU season Williams will have higher hopes than he did in 2014. Williams will carry a bigger load in 2015 and expects to lead LSU to a championship. Context_9 : Joseph Yearby is an American football running back who is currently a free agent. He played college football at the University of Miami. He was a backup to running back Duke Johnson as a freshman, but started in his sophomore year. In his sophomore year, he became just the ninth player from the University of Miami to surpass 1,000 yards in a season. Context_10 : Randy "Duke" Johnson Jr. (born September 23, 1993) is an American football running back for the Cleveland Browns of the National Football League (NFL). He was drafted by the Browns in the third round (77th overall) of the 2015 NFL draft. He played college football at Miami (FL). fact_1 :  He was a backup to running back Duke Johnson as a freshman, but started in his sophomore year. fact_2 : Randy "Duke" Johnson Jr. (born September 23, 1993) is an American football running back for the Cleveland Browns of the National Football League (NFL). fact_3 :  He was drafted by the Browns in the third round (77th overall) of the 2015 NFL draft. Answer: Cleveland Browns
Output: What team drafted the running back that was backed up by Joseph Yearby during his freshman season at the University of Miami?