No margin for error as title race hots uppublished at 14:57 Greenwich Mean Time 16 March
Celtic v St Johnstone (15:00)
Martin Dowden
BBC Sport Scotland at Celtic Park
With just nine games to go, neither Celtic nor Rangers can really afford to stumble, particularly in home fixtures.
Celtic are limited by injury issues again, with Liam Scales missing out but the demand remains the same. They need a consistency of performance and results from here on in.
A win puts that little bit of pressure on Rangers who face a tricky trip to Dundee tomorrow amid their hectic schedule.
St Johnstone have troubled Celtic this term, though. A 0-0 here early in the season and they then held a lead until the final quarter in Perth before finally succumbing. They need that sort of display here once again.