The 24-year-old Serb was one of the Bhoys' few positives in Croatia, as he scored and hit the post, almost inspiring a second-half comeback for the Hoops.
And boss Deila was pleased with the forward's performance when speaking to reporters after the game.
Scepovic was standing in for John Guidetti, who was ineligible for the Europa League clash.
RD: "Scepovic had a good game. He scored and almost had a second. That's positive and I'm happy for him." (KM)— Celtic Football Club (@celticfc) December 11, 2014
Statistically, meanwhile, Scepovic certainly contributed in Croatia (according to data taken from WhoScored.com). The 24-year-old striker made one key pass, won three aerial duels and hit the target with one of his three shots.
In fairness, Scepovic's stats give little away. But Deila can't be said to be wrong overall.
Our player ratings gave the forward a 7/10 last night: 'Scepovic did well up front, scoring once and was denied by the woodwork on another occasion. He seemed like he needed a partner alongside him to really flourish.'