Question: Which brother is older, Pat Sanderson or Alex Sanderson?

Context paragraphs:
Alex Sanderson: Alexander Sanderson (born 7 October 1979 in Chester) is a former English rugby union footballer who played in the back row for Saracens and Sale Sharks.  He is the brother of Pat Sanderson who also played rugby for Littleborough RUFC.

Thomas Sanderson (Wisconsin politician): Thomas Sanderson (13 September 1827 – 1 October 1912) was a United States farmer who served in the Wisconsin State Assembly from Columbia County.  He was the younger brother of Robert B. Sanderson.

Kyle Dake: Kyle Dake is an American former collegiate wrestler at Cornell University.  He won four NCAA Division I national titles.  With his fourth title in 2013, he joined Cael Sanderson and Pat Smith as the only four-time Division I champions.  The feat was later matched again by Logan Stieber.  He won the 141 pound weight class as a freshman in 2010, the 149 pound class in 2011, the 157 pound class in 2012, and the 165 pound class in 2013 defeating David Taylor, the defending champion and 2012 Dan Hodge Trophy winner.  Dake is the only wrestler in NCAA history to win four national championships in four different weight classes.  No other wrestler had previously won NCAA titles in more than two weight classes.

Pat Sanderson: Pat Sanderson (born 6 September 1977 in Chester) is a former England international rugby union player and a former flanker for Worcester.  He is the brother of the former England player Alex Sanderson.

Three Days Grace: Three Days Grace is a Canadian rock band formed in Norwood, Ontario in 1997.  Based in Toronto, the band's original line-up consisted of guitarist and lead vocalist Adam Gontier, drummer and backing vocalist Neil Sanderson, and bassist Brad Walst.  In 2003, Barry Stock was recruited as the band's lead guitarist.  In 2013, Gontier left the band and was replaced by My Darkest Days' vocalist Matt Walst, who is also bassist Brad Walst's brother.

Kevin Tillman: Kevin Tillman (born January 24, 1978) is a former U.S. Army soldier, an American anti–Iraq War activist, and former Minor League Baseball second baseman.  In 2002, Tillman left the Cleveland Indians organization after the September 11 attacks to enlist in the United States Army.  With his older brother, former National Football League star Pat Tillman, he completed the Ranger Indoctrination Program in 2002, and they were both assigned to 2nd Battalion—75th Ranger Regiment.  Kevin and Pat Tillman were deployed to the Middle East together as part of Operation Iraqi Freedom.  In 2004, Pat was killed in combat while in Spera, Afghanistan by friendly fire.

Phil Sanderson: Phil "Flip" Sanderson (born January 23, 1977 in Orangeville, Ontario) is a professional lacrosse player for the Toronto Rock in the National Lacrosse League and formerly of the Toronto Nationals of Major League Lacrosse.  Sanderson is one of a number of Sandersons involved (or formerly involved) in the NLL, including his brother Nate and cousin Josh.

Treepeople: Treepeople was an alternative rock band from Boise, Idaho, although it spent most of its time and was officially based in Seattle, Washington.  The band was composed of Pat Brown (née Schmaljohn, Scott's older brother), Wayne Rhino Flower, Doug Martsch, and Scott Schmaljohn.  It also included drummer Eric Akre on the critically acclaimed album Just Kidding, 1991.  Brown, Flower, and Schmaljohn were ex-members of the Boise punk band State of Confusion.  The band gained local notoriety and success in the late 1980s and early 1990s, but after losing members to family complications and other projects, particularly Martsch to Built to Spill, the group disbanded in 1994, having released three albums and a handful of singles.  Scott Schmaljohn later played in Stuntman, The Hand, and The Treatment.  Schmaljohn also guested on Built to Spill's 2009 album "There Is No Enemy", playing on the song "Pat," a tribute to Pat Brown, who committed suicide in April 1999.  Prior to his death, Pat fronted the band Hive.  Wayne Flower went on to play in Violent Green and The Halo Benders with Doug Martsch and Calvin Johnson (of Beat Happening, Dub Narcotic and co-founder of K Records).

Pat Smith (wrestler): Pat Smith (born September 21, 1970) is a former collegiate wrestler at Oklahoma State University and a former assistant coach at OSU.  During his collegiate wrestling career, he became the first four-time NCAA wrestling champion in the sport's history, a feat only equalled nine other times: by Cael Sanderson, Kyle Dake and Logan Stieber in Division I; five times in NCAA Division II, most recently in 2016 by Joey Davis; and Marcus LeVesseur in Division III.  Smith resigned as Oklahoma State's assistant coach on May 1, 2006.  His brother, Olympic champion John Smith, is the current head coach at OSU.

Nate Sanderson: Nathan "Nate" Sanderson (born June 3, 1985 in Orangeville, ON) is a Canadian lacrosse player.  Sanderson played for the Toronto Rock in the National Lacrosse League during the 2008 NLL season and signed with the Calgary Roughnecks for the 2009 NLL season.  Sanderson is one of a number of Sandersons in the NLL, including his brother Phil and his cousin Josh.

Supporting paragraphs: Pat Sanderson Alex Sanderson
Answer: Pat Sanderson