Gustaf Lagerbielke’s return to Celtic Park was one of the unexpected subplots on a night where the home side slumped to another frustrating European defeat. Lagerbielke was calm in possession, solid in the air, and rarely looked troubled as Celtic toiled in the final third. It was his first appearance at Parkhead since leaving Celtic in the summer, having struggled to hold down a regular place under Brendan Rodgers. Posting a set of photos from the match, he captioned them simply: “Special win. On Thursday, Lagerbielke showed exactly why Braga moved to bring him in – and reminded Celtic what they might be missing.