Celtic’s win over St Mirren in the Scottish Cup this afternoon was a very good result, and performance, from Brendan Rodgers’ side. The Buddies are flying high in the Scottish Premiership and with Rodgers’ Bhoys struggling for form recently, the Celtic fans would be forgiven for travelling to Paisley with a sense of trepidation. This fixture had a real banana skin feeling attached to it and if it wasn’t for what Joe Hart did in the first half against Stephen Robinson’s men, it could have been a very nervy afternoon for the Parkhead side. When Celtic were 1-0 up and looking comfortable, the £1m…