Triumph Lyubertsy identified Mire Chatman as the man they had to stop to have any success against Pinar Karsiyaka in Tuesday's opening game of the EuroChallenge Last 16.
They failed to do so, though, with Chatman firing Karsiyaka to a 90-75 victory in the Moscow Region.
Chatman erupted for 29 points and Jovo Stanojevic poured in 24 for the Turkish club in the Group L game.
With the visitors on top 56-54 in the last minute of the third quarter, Chatman drew a foul from 19-year-old guard Artem Vikhrov and made two free-throws.
Immediately after, a wayward three-ball by Sergey Karasev triggered a fast break that Chatman finished for a 60-54 lead.
Stanojevic and Chatman then made lay-ups at the start of the last quarter for a 64-54 advantage and following a basket by Triumph, Chatman struck from long range for an 11-point lead.
Chatman would go on to score 12 points in the last quarter.
For Triumph, Victor Zvarykin had 18 points and Dmitry Kulagin 16 along with 11 rebounds.
Artem Kuzyakin also weighed in with 16 points in defeat.
Since winning their first four games in the EuroChallenge, Triumph have lost three in a row.
BC Triumph Coach Vasily Karasev:
"Today we played without our playmaker McKee and our main center Kyle Landry who's injured. We played well as a team only in the first five and the last minutes; for the rest of the game my team preferred an individual game. We failed to stop Chatman and their fast breaks."
BC Karsiyaka Coach Hakan Demir:
"I'm happy with the result. We prepared seriously for this game and our victory is very important. It was a tough win. Triumph played without their leaders; the game will be different in Turkey if they can recover. I want to mention the game of youngsters Karasev and Kulagin, they had a good game."
BC Karsiyaka player Mire Chatman:
"My performance today is the result of our team game. It was a tough encounter, and I'm sure they will show a better face on the road. Triumph has very good young players, they play very tough, they try their best in every game."
BC Triumph captain Artem Kuzyakin:
"I can't explain the reasons for such result; [maybe because] we played with young players, without leaders, we had a terrible second quarter, we missed a lot of fast breaks, we failed to stop Chatman. So now we have to work over our mistakes and prepare for our next game in the Russian League, on January 13."