With a place in the World Cup qualifying play-off final at stake, discipline may prove to be key for both Scotland and Ukraine as they face each other in their crucial semi-final clash at Hampden Park on Wednesday evening.
The winner of the fixture will go on to play Wales in Cardiff on Sunday, June 5, for a spot at the World Cup in Qatar later this year.
Both teams have had fairly strong disciplinary records so far in this qualifying campaign, with Scotland picking up 16 yellow cards, an average of 1.6 per match, and Ukraine collecting 11 for an average of 1.4 per match. However, the visitors also have one red card to their name with Everton's Vitaliy Mykolenko being sent off against Finland last year.
