Town legend Kevin Beattie has died at the age of 64.
He came to Ipswich as a 15-year-old and progressed through the youth ranks before making his debut against Manchester United in 1972.
Beattie went on to score 32 goals in 307 appearances during his time at the club and was widely regarded as one of the club's greatest players, helping the Blues win the FA Cup in 1978 and the UEFA Cup in 1981.
His career ended at the age of 28 due to injuries, and when he left Ipswich, he had spells at Colchester and Middlesbrough, before enjoying spells in Sweden and Norway.
He won the 1973-74 PFA Young Player of the Year award and won nine caps for England, with Bobby Robson declaring him to be England's best defender
"Beat" returned to Ipswich and was a pundit on BBC Radio Suffolk.
The club have confirmed there will be a minute's applause before Tuesday night's home game with Brentford, where the players will wear black armbands as a mark of respect.