Ange Postecoglou has named his side as Celtic look to try to re-establish their commanding lead in the Premiership.
With Rangers defeating Ross County 2-1 at Ibrox on Saturday the gap was cut to six points. So it's up to Postecoglou's men to respond in Perth and the go into this one on fine form having denied the opposition from scoring in their last four matches and, of course, they have won 16 of their lasts 17 top flight matches.
Celtic also have a fine record at McDiarmid Park with 12 straight wins there, although the last visit was a nervous one when Giorgos Giakoumakis snatched a last-gasp winner when Saints looked like holding them to a draw.
