Republic of Ireland Under 18 international midfielder Anthony Shields played for Omagh Town and Norwich City before joining Peterborough. Born in June 1980, Tony was one of the shortest players in Division Three at 5'7 but has still managed to score with his head in competitive matches against Reading and Darlington. "What he lacks in height, he makes up for in passion and tenacity" (Official Peterborough United website)

Shields was spotted playing in his native country by former Posh Football in the Community Officer Tony Williams almost four years ago. His maturity and will to succeed impressed all at London Road and it wasn’t long before the youngster was given a major role in Posh’s successful youth team of two seasons ago. He broke into the first team at the end of the 1997/98 season. Although primarily a midfielder, he has also led the attack on occasion. In March 2000, Shields was offered a new five year contract by Peterborough

Transfer-listed in the Autumn of 2001, Tony joined Stevenage on loan on 24th January 2002. However he was homesick and wished to return to his native Ireland. He did this at the end of the 2001/02 season, joining Derry City on a part time basis, He returned to Peterborough making 33 appearances in 2002/03. However he planned to return to Ireland in February 2004 so Posh manager Barry Fry sent him on a three month loan to Aldershot in October 2003. This move later became permanent but Aldershot cut his contract in March 2004 as Tony was finding the travelling from his new home in Ireland difficult. A sending off resulting in a three match ban when only 9 games remained, forced Aldershot's hand.