Sheffield Wednesday manager Brian Laws has placed former England striker Francis Jeffers on the transfer list.Jeffers, 29, was sent off for a head-butt during his side's 2-0 Carling Cup defeat by Port Vale on Tuesday.
Laws told the club website: "His conduct was totally unacceptable and something this club will not tolerate.
"We have therefore enforced the heaviest punishment available with immediate effect and transfer listed the player."
Jeffers, who signed for the Owls in 2007, was sent off after appearing to head-butt Port Vale player Tommy Fraser.
Laws added: "The kind of behaviour enacted on Tuesday night is completely unacceptable and does not represent what Sheffield Wednesday stands for."