Town captain Jon Walters is reported to have asked for a transfer. The 26-year-old has been tipped for a move away from Portman Road all summer with QPR and Stoke both linked.
The former Republic of Ireland B international, who played the full 90 minutes against West Ham yesterday, is said to have made the request but is yet to formally put it in writing.
A fortnight ago, QPR were reported to have had an offer turned down by the Blues. The fee was claimed to be £2.5 million, although more recent suggestions that the bid was just over £1 million appear more realistic.
Stoke have been eyeing the striker-turned-midfielder since 2008 and were again mentioned in connection with a move last week.
Walters joined the Blues from Chester City for a fee of £100,000 plus top-ups, which would ultimately take the deal to £200,000, in January 2007.
Meanwhile, Swansea sent a scout to watch the Blues take on West Ham at Portman Road yesterday. Swans manager Brendan Rodgers is believed to be interested in Blues striker Tamás Priskin, who played under him at Watford. Rodgers is believed to have made a £400,000 initial offer to test the water.
Blues boss Roy Keane is not looking to sell Priskin and has been impressed with him in pre-season, even if the Hungarian international is yet to score.