Question: What USL outfit did the team that an American professional soccer player born July 31, 1987 partner with in the off-season of 2014?

Context paragraphs:
Jocelyn Roy: Jocelyn Roy (born July 15, 1973) is a former Canadian soccer player who had stints in the National Professional Soccer League, USL A-League, and the Canadian Professional Soccer League.

Shayne Campbell: Shayne Campbell (born November 18, 1972) is a former Canadian soccer player who played in Canadian National Soccer League, USL A-League, National Professional Soccer League, Major Indoor Soccer League, and the Canadian Professional Soccer League.

Austin Aztex FC: Austin Aztex FC was an American professional soccer team based in Austin, Texas, United States.  Founded in 2008, the team played in the USL First Division, and in the USL Division of the USSF D2 Pro League, the second tier of the American Soccer Pyramid.  In October 2010, the Aztex were relocated to Orlando, Florida and became Orlando City after Orlando USL's rights were purchased by Phil Rawlins.  The team was resurrected in 2011 by minority owner David Markley as the Austin Aztex, which began play in the USL Premier Development League in 2012 and moved to United Soccer League in 2014.

Peyvand Mossavat: Peyvand Mossavat (born August 17, 1970) is a former Iranian born Canadian soccer player and coach who played in the Canadian Soccer League.  Canadian National Soccer League, National Professional Soccer League, USL A-League, and the Canadian Professional Soccer League.

Michael Bradley (soccer): Michael Sheehan Bradley (born July 31, 1987) is an American professional soccer player who plays as a midfielder.  He currently captains both Canadian club Toronto FC in Major League Soccer and the United States men's national soccer team.

Scott Cannon: Scott Cannon (born July 22, 1968 in Evansville, Indiana) is an American former soccer defender who played three seasons in Major League Soccer, two in the American Professional Soccer League, three in the National Professional Soccer League and at least four in the USISL and USL.  He was the 1999 USL Defender of the Year and a two time USL All Star.

Willy Giummarra: Willy Giummarra is a Canadian former soccer player who played in the National Professional Soccer League, American Professional Soccer League, English third division, USL A-League, and Canadian Professional Soccer League.

2014 Toronto FC season: The 2014 Toronto FC season was the eighth season in club history.  During the off-season, Toronto FC agreed to a one-year partnership with USL outfit Wilmington Hammerheads.  Jackson, Justin Morrow, Dwayne De Rosario, Gilberto, Michael Bradley, Jermain Defoe, Bradley Orr, Collen Warner, Luke Moore, Dominic Oduro, Warren Creavalle and Júlio César came to Toronto.

Joe Malachino: Joe Malachino is a former American soccer player and currently Eastern Michigan Eagles assistant coach.  He played in the National Professional Soccer League, USL A-League, USL Premier Development League, and Canadian Professional Soccer League.

Bernie Lilavois: Bernie Lilavois (born August 31, 1970 in Far Rockaway, New York) is an American soccer forward who played two seasons in the American Professional Soccer League, one in the USISL, one in the USL A-League, four in the Continental Indoor Soccer League, six in the National Professional Soccer League, and four in the Major Indoor Soccer League.  He was the head coach of the Stockton Cougars in the Professional Arena Soccer League and the head coach of the US National Arena Soccer Team.  He is currently the Head Coach and a Managing Partner for the Ontario Fury.

Supporting paragraphs: 2014 Toronto FC season Michael Bradley (soccer)
Answer: Wilmington Hammerheads