Anthony Stewart
Dons captain Stewart will have to keep either Antonio Colak or Alfredo Morelos quiet if Jim Goodwin’s men are to reach the final. While he sometimes earns criticism for his use of the ball, there's no doubting his ability to clear the lines and thrive in a defensive unit that has to do a lot of defending, which is what will be expected of Aberdeen on Sunday.
Graeme Shinnie
While it's always exciting when a former hero returns there is typically an air of trepidation as well. But Shinnie looked like his old self during his second Aberdeen debut against St Johnstone last weekend and he'll need to have a big performance at Hampden for his team to have the best chance of victory. The combative midfielder fights and bites for every ball, while he's also a threat on the attack due to his ability to drive the ball quickly and purposefully through defences.
Luis 'Duk' Lopes
The former Benfica attacker is one of the best and certainly most exciting players in Scottish football this season. Whether he plays up front or on the wing, he brings not only a real goal threat (he's found the back of the net 11 times in 24 appearances) but also terrorises defences with his dribbling ability. If Aberdeen can keep things tight at the back and limit the number of opportunities Rangers have, Duk has the potential to go and win it for them at the other end. A player who never looks short on confidence, it'll also be interesting to see how he takes to playing on the biggest stage Scottish football has to offer.
