2017 has been a memorable year for young Celtic defender Kieran Tierney.
In November - aged just 20 - he captained Scotland for the first time in a friendly against the Netherlands. Two weeks earlier, he had penned a new deal with Celtic which runs until 2023.
On Christmas Eve, UEFA recognised Tierney's performances on the pitch and his potential by naming him in their 'Champions League Breakthrough XI'.
On the UEFA website, Tierney is called "the best British-born left-back of his generation" (though, he was actually born on the Isle of Man).
At 20, Tierney has already played over 100 matches for Celtic and captained Scotland. Rated the best British-born left-back of his generation, the youngster's assist for Leigh Griffiths' goal in the 3-0 win at Anderlecht was Tierney at his swashbuckling best.
Tierney started all six of Celtic's game in this season's Champions League group stage. As mentioned by UEFA, his contribution for Leigh Griffiths's goal against Anderlecht was a particular highlight.
The full Breakthrough XI is as follows:
Ederson (Man City)
Nelson Semedo (Barcelona)
Sule (Bayern Munich)
Arsenio (Real Madrid)