Inverness Caledonian Thistle manager Terry Butcher has lambasted Celtic's Ki Sung-Yong for his "shocking" tackle on Lee Cox that could leave him sidelined for six weeks.
Cox had to be stretchered off as a result of the South Korea international's challenge at the tail end of Wednesday evening's 6-0 battering in the Co-operative Insurance Cup.
It is just the latest injury blow for Butcher who has seen his squad decimated by injuries and now has five key players out.
"Lee's in plaster now and has had X-rays that the specialist will assess today," Butcher told the Daily Record.
"We could be looking at five to six weeks - and that's a massive blow for us. Lee has hurt his fibula on the outside of his ankle.
"It swelled up after the game and he's in a lot of pain. The Celtic player Ki didn't use a key, he used a sledgehammer. It was a shocking challenge.
"There may be a fracture, we don't know - we'll just have to wait and see."
Caley Thistle have been hampered by injuries on their return to the Scottish Premier League, however, Butcher is adamant his squad have to step up.
He added: "It's not been great but that's what happens sometimes - we need to get on with it.
"We've got Ritchie Foran and Gil Blumenshtein coming back but that still leaves Dani Sanchez, Kenny Gillet, Kevin McCann, Chris Innes and now Cox all out.
"That's five big players and a big proportion of our squad. People have to step up, rise to the occasion and make sure they contribute."