Barry Ferguson urges Rangers to get dirty and FOUL Callum McGregor if Celtic skipper gets going

Barry Ferguson reckons Rangers need to do everything they can to stop Callum McGregor on Saturday - even if it means FOULING him.

Celtic are back to almost full-strength after an injury hit season and it's come at a good time with a potentially season-defining game against their rivals this weekend. If the Hoops win, it's virtually guaranteed they will win a third straight title as they would be six points ahead of Philippe Clement's team with two games to play.

Realistically, Rangers need to win to stand any chance of reining them in. But if they do, it goes to level on points - and a case of who blinks first in the final two games. There's a lot on the line then and Ferguson, who played in 39 derbies during his Ibrox career, believes slamming the door in skipper McGregor's face is the key to it.

He said on Go Radio: "He (McGregor) starts the attacks. They're just little passes but they're important passes. Rangers need to make sure Callum McGregor is facing back to Joe Hart EVERY time he gets the ball. And if he does turn you, take a foul."

McGregor spent a large chunk of the season out injured and returned from the bench against Gers in the 3-3 derby in April. But he's started successive league games for the first time since his knock in February, and came through 90 minutes in the win over Hearts - many believing it was one of his best performances of the season. Pundit Mark Wilson noted he 'directed the traffic' in that game and he'll be hoping to do so again on Saturday.