Max Stryjek/Robby McCrorie
Stryjek was the No 1 for most of Livingston's 14-game run but wasn’t at his best when St Johnstone won at the Tony Macaroni Arena earlier this month. After Livi conceded three goals at Dundee United the following week, the Pole was replaced by Robby McCrorie, who had a decent game in the 1-1 draw with St Mirren last time out. This is a crucial call for manager David Martindale. It's likely to be a low-scoring contest, as most finals are, therefore a goalkeeping error could spell disaster. Whoever starts between the sticks will need to be on it.
Jon Guthrie
St Johnstone have attempted the second-highest number of crosses in the Scottish Premiership this season, so Livingston's defence will have to be ready to clear their lines. Thankfully, they have Guthrie within their ranks. The centre-back is one of the best in the league at winning aerial duels inside his own penalty box, while he's also a dab hand at attacking crosses in the opposition area - as evidenced by the five goals he's netted in 2020/21.
Scott Robinson
The scorer of the only goal in their semi-final victory over St Mirren, Robinson is back in full training after being forced off in the defeat to Dundee United earlier this month due to a back injury. The Lions better hope the attacker isn't hobbled at all, as his 'lay-it-all-on-the-line' attitude really sets the tempo for the team. Regardless of where he plays, Robinson's value to this Livingston side cannot be measured in mere goals or points, but it might in trophies.