Kevin Thomson believes the return of skipper Barry Ferguson has every Rangers midfielder looking over his shoulder.
Ferguson has recovered from five months out following ankle surgery and is set to return to the starting line-up after making two substitute appearances.
Summer signings Steve Davis and Pedro Mendes have settled in well in Ferguson's absence while Thomson has also contributed, scoring the last-gasp leveller in Tuesday's 3-3 draw with Dundee United.
But they must fight it out for a starting berth now that Ferguson has returned to full fitness.
"It's a big club and there is always competition for places," he said.
"It's been well-documented that the skipper is back now and he is pushing for a game.
On their toes
"It's not just myself, it's up to every player to stay on their toes and to work hard and stay in the team."
Thomson's equaliser against Dundee United ensured Rangers stretched their unbeaten home run in the SPL to 13 months, although the 3-3 draw was not enough for the Gers to go level with Celtic at the top of the table.
"We have a great record here and we would like to keep that going," said Thomson.
"If we are going to win the title, we have to win our home games so it certainly feels like two points dropped.
"It was the same when I was at Hibs, every team who comes up against the Old Firm wants to do their best.
"It's always a cup final, especially at Ibrox in front of 50,000. If you don't want to come here and perform, then you shouldn't be playing football.
"They came and had a go and it's up to us to up our game and make sure that we beat these teams."