Sean Michael Callahan is a retired American professional soccer player who played professionally in the USL A-League and World Indoor Soccer League.
He attended Santa Clara University, playing on the men's soccer team from 1996 to 1999, participating in 1998 & 1999 Final Fours, reaching the National Championship vs. Indiana in 1999.
Callahan turned professional in 2000 with the Sacramento Knights of the World Indoor Soccer League.
[1] In 2002, Callahan moved to the Rochester Rhinos, but went on loan to the Hampton Roads Mariners for most of the season.
[2] He retired from professional soccer after the 2004 season, but spent one season with the fourth division Sacramento Knights of the amateur National Premier Soccer League in 2006.