Career
Cassidy is currently the fitness coach for Widnes after retiring from the game in 2008. Cassidy had a wealth experience with the dominant Wigan side of the early to mid-"90s. Cassidy is a Great Britain representative.
Mick Cassidy"s position of choice was in the second-row, but he could also play at prop or hooker.
Cassidy has been labelled a utility player and has played wherever he has been needed. Wigan
Cassidy started his career out at his hometown club, Wigan and progressed through the academy ranks to make his senior début at the age of 18.
Mick Cassidy was an Interchange/Substitute, id est (that is) number 15, in Wigan"s 2-33 defeat by Castleford in the 1993-1994 Regal Trophy final during the 1993-1994 season at Elland Road, Leeds on Saturday 22 January 1994, played Right-second-row, id est (that is) number 12, in the 40-10 victory over Warrington in the 1994-1995 Regal Trophy final during the 1994-1995 season at Alfred McAlpine Stadium, Huddersfield on Saturday 28 January 1995, and played Right-second-row in the 25-16 victory over Saint Helens in the 1995-1996 Regal Trophy final during the 1994-1995 season at Alfred McAlpine Stadium, Huddersfield on Saturday 13 January 1996. Mick Cassidy was part of the England squad at the 1995 Rugby League World Cup.
In the 1997 post season, Cassidy was selected to play for Great Britain at second-row forward in the first game of the Super League Test series against Australia.
He played for Wigan from the interchange bench in their 1998 Super League Grand Final victory over Leeds. Cassidy played for the Wigan Warriors at second-row forward in their 2000 Super League Grand Final loss against Street Helens RLFC. Cassidy later switched allegiance through ancestry to play for Ireland. He was ruled out of the 2000 Rugby League World Cup through injury.
Cassidy served a total of 14 years at the Wigan club, enjoying a testimonial in 2000.
Cassidy played for the Wigan Warriors at second-row forward in their 2001 Super League Grand Final loss to the Bradford Bulls. Cassidy played for the Wigan Warriors at second-row forward in the 2003 Super League Grand Final which was lost to the Bradford Bulls.
Cassidy was named in the Wigan team of the decade and was acknowledged as one of the game"s best utility players. Widnes
He could not, however save them from relegation from Super League in 2005"s Super League X. Cassidy represented the Irish side on numerous occasions over several years.
He was named in the Ireland squad for the 2008 Rugby League World Cup.