BBC Scotland looks at the impact of Kieran Tierney in Celtic's win over Dundee in the Scottish Premiership.

On a tough night at the very start of a new season, against a dogged Dundee, it was a familiar name that helped Celtic usher in victory. No, not Benjamin Nygren - last season's top scorer and the man who nodded in the winner to kickstart the Scottish Premiership defence - but Kieran Tierney, the man who crossed the ball for the Swede to head in. The left-back has arguably been Celtic's best player since the return of Martin O'Neill in January, but his renaissance has gone a little under the radar. Perhaps that's because we expect so much from the man who once fetched Celtic a reported £25m in a move to Arsenal. Regardless, he still registered 12 assists last season, the most of any Celtic player, and scored six goals from defence. One of O'Neill's most trusted lieutenants, he's contracted until 2030 but reports have suggested a potential return to Spain, so just how important is he to Celtic? Sportsound: Reaction as Celtic kick-off their title defence with a narrow win over Dundee Despite Kasper Hogh's 0.88 expected goals (xG), it was actually Tierney who had the most shots on target for Celtic against Dundee - albeit only two.