Both born in 2003, the pair have shared a dressing room at B Team level in recent years having made their first-team debut under previous managers.
McCausland’s breakthrough arrived under caretaker manager Steven Davis in October, before seizing his opportunity under Clement and lifting his first piece of silverware on Sunday in the Viaplay Cup triumph over Aberdeen.
And Yfeko, who made his first-team debut in the side’s League Cup opener at home to Greenock Morton in August, says he’s delighted that the Northern Irishman has become a regular member of Clement’s side.
Speaking to the official club website to preview Friday’s Gers B clash against Brentford B, the 20-year-old said: “When Ross was with us in the B Team, every single day he put in the work. If you checked the stats, he was one of the players who was running the most.
“He played well almost every game, and I’ve always thought he was one of the standout players since I came to the club.
“It wasn’t so much about seizing the chance as being ready for the chance, and I think he’s going to keep it for the rest of his career.
“It was special for me because I know I had some part to play, as it was for other players who were playing in the same team as me such as Ross [McCausland].
“And he deserves every moment that he’s getting right now, especially given it’s his first trophy, so it gives us all inspiration.
“To see how the fans all gathered around Edmiston House, it just shows the beautiful side of football.”
David McCallum’s side will round off the calendar year with a visit from Brentford B on Friday afternoon.
The fixture marks the fifth occasion this term that the B Team have squared off against Premier League opposition.
Yfeko added: “We’re really looking forward to it. It’s a game that will not only be technical but physical too.
“They could give us a more physical challenge than a technical one, and it’s just about getting a result. We need to be mentally strong and stick together.
“They’re usually big, fast, and they can technically do things with the ball at their feet as well. It’s a good test, and it will be a tough one for sure, but we play football because we know that it’s hard.
“The beauty of it is that you win hard and enjoy it.
“The difference between us and them is that they’re a bit more experienced than we are. Of course we’re all in academies and it’s about playing our way, but sometimes it’s about being streetwise.
“It’s something we’ve been working on in training as a group and within games, so it’s a chance to put it into test.
“It’s about going out on a positive note because we want to start next year strong as well. It will set us up good for 2024 so hopefully we can get the win.”