'Potentially season-defining'published at 19:37 GMT 30 January
St Johnstone v Partick Thistle (19:45)
Jonathan Sutherland
BBC Sport Scotland
This game has 'potentially season-defining' written all over it.
A few people scoffed when Sportsound presenter Kenny MacIntyre tipped Thistle for the title on the first Saturday of the season - especially when the Jags were then trounced 5-1 by St Johnstone at McDiarmid Park.
But nobody is scoffing now.
A win for Thistle on Friday night would see them leapfrog Saints into top spot, albeit having played a game more.
Thistle were also 2-1 winners the last time these sides met, back in November at Firhill.
They have been the most consistent and impressive sides in the division, with only occasional faltering moments.
That's what makes it an incredibly difficult call as to who will win this match - and indeed the Championship title outright.
