Richie Foran is available before his suspension kicks in for the season finale, a potentially-pivotal Highland derby against Ross County.
Goalkeeper Ryan Esson and defenders Gary Warren and Simon King remain out.
Caley Thistle are currently one point clear of St Johnstone - and four ahead of County - in the race for the final European berth, behind second-placed Motherwell.
United boss Jackie McNamara will have to ring the changes for the trip to the Caledonian Stadium after four of his defenders were ruled out of the game.
Keith Watson, Sean Dillon, Gavin Gunning and Barry Douglas will all miss the Tangerines' penultimate match of the season
Striker Johnny Russell, however, could be in line for his first start since suffering a broken leg in the 0-0 draw in the Highlands' capital on February 27.
He returned to action by making a second-half appearance in the 1-0 defeat to St Johnstone last week.