Celtic legend Pat Bonner has laid into the midfield deployed by Rangers in the clash between the Bhoys and the Gers at Parkhead on Saturday.
Brendan Rodgers' men produced a dominant performance against Mark Warburton's side, overrunning Rangers and recording a comprehensive 5-1 win over their fierce rivals.
Goals from Moussa Dembele (33rd, 42nd and 83rd minutes), Scott Sinclair (61st minute) and Stuart Armstrong (91st minute) were too much for Rangers, who only replied through Joe Garner (44th minute), to handle; Rangers had Philippe Senderos sent off for a second yellow card offence in the 75th minute.
Rangers struggled to contain Celtic, especially in the centre of the park and Bonner feels Joey Barton is not the player he once was, while Niko Kranjcar cannot keep up with the pace of games.
Bonner said on BBC Radio Scotland: "Rangers did well for the first half-hour, but their legs got tired quickly.
relatedNewsStory
"You have to question putting up a midfield like that against Celtic.
"Joey Barton doesn't have the legs anymore and he is not at the level of Rangers players of the past.
"Niko Kranjcar just can't run, and Josh Windass was the best of the three, but that was the area where the game was won", the former Celtic man added.
Warburton included Windass in the midfield three in an attempt to add youthful energy, but Celtic bossed the game in the centre of the park and have now opened up a four-point gap over Rangers, with a game in hand.
