Looks like another that russianflame's source got right.
Elliotte Friedman @FriedgeHNIC
That “mystery defenceman” is likely Alexander Yelesin, a right-shot from KHL Lokomotiv. The Flames were one of several teams pursuing him
Pat Steinberg @Fan960Steinberg
Couple takeaways from Bill Peters today:
-in his opinion, Monahan isn’t healthy enough to go to Worlds but it’s not up to him.
-team didn’t deal with momentum well enough vs. Colorado.
-team has more depth coming, including a d-man they’ve signed but not announced. #Flames
Yelesin big hit on Zakharchuk:
https://www.dailymotion.com/video/x6tu72v
KHL Fight: Yakupov vs Yelesin
https://www.dailymotion.com/video/x74axgq
Yelesin slapshot
https://www.dailymotion.com/video/x6c0rrk