Noel Whelan has slammed Callum McGregor for getting sent off as Celtic lost 4-1 to Rangers on Sunday.
The former Leeds United and Aberdeen striker, speaking exclusively to Football Insider, branded McGregor’s actions as ‘reckless’ and ‘stupid’.
McGregor saw red in the first half as he received two yellow cards for fouls on Ryan Kent and Glen Kamara.
The midfielder brought down Kamara on the edge of the Celtic box but the referees’ advantage allowed Rangers to score moments later.
McGregor received his second yellow as Kemar Roofe celebrated the first of his two goals.
Whelan couldn’t believe the lack of discipline shown by McGregor as he failed to walk the line following his earlier booking.
“When you get one [yellow card], you have to walk the line,” Whelan told Football Insider correspondent Dylan Childs.
“You’ve got to have that discipline. It was reckless, stupid and he really let the team down.
“He’s a massive part of that team and to get that second yellow at such an early stage was a killer blow.
“It destroyed the game, there was no real hope for a way back for Celtic after that.”
McGregor also had a torrid time in January’s Old Firm clash as his own goal handed Rangers a 1-0 win at Ibrox.
The Hoops are now 23 points behind Rangers who sit at the top of the Scottish Premiership table with two games remaining this season.