Nigeria, Dec. 10 -- Ademola Lookman delivered another energetic Champions League performance on Tuesday night as his Italian team, Atalanta, grinded out a 2-1 comeback win over Chelsea in Bergamo.

The Nigerian forward was a constant threat in transition and had a well-taken goal ruled out for offside, as Atalanta overturned an early deficit to deepen Chelsea's struggles under Enzo Maresca.

The Premier League side had taken the lead through Joao Pedro, but Charles De Ketelaere inspired the turnaround, first setting up Gianluca Scamacca for the equaliser before scoring the decisive 83rd-minute winner.

The defeat extended Chelsea's winless run in all competitions to four and added a new layer of unwelcome history: it was the first time si...