Celtic forward Marc-Antoine Fortune has questioned title rivals Rangers' ability to cope with the pressure that comes with their lead at the top of the Scottish Premier League.
Rangers saw their healthy gap cut to eight points on Wednesday as their draw away to Motherwell was bettered by Celtic's 2-0 win over Hearts at Parkhead.
Tony Mowbray's side can reduce the deficit further with a win in their early kick-off at Aberdeen on Saturday, while Rangers host Hibernian on Sunday.
Fortune, who scored the second against the Jambos, believes a win over the Dons could affect Walter Smith's camp with the two sides set to meet again at Ibrox at the end of the month.
Asked if he thought their Old Firm rivals would crack in the title run-in, Fortune replied: "I think so, yes.
"In the dressing room after the Hearts game, we all said that we can do it and we have to believe it. There are 14 games left and we have put them under pressure.
"When you see the team behind you win and win and you make some mistakes, you start to think about it and it's not good when you think about it.
"Rangers drew 1-1 with Motherwell (on Wednesday) so we see that they can lose or draw so we have to believe and I think we will do it."