Fresh from scoring the draw with Qarabag in the Champioins League during midweek, the 24-year-old stepped up once again in his side's time of need.
'Los Colchoneros' looked to be on course for their sixth draw of the season in the league, until Lucas Hernandez's late raid was ended by Sidnei on the edge of the box.
Step forward Thomas, with the Ghanaian firing the resulting free kick past a helpless Costel Pantilimon in the Deportivo goal.
It was a fine strike and it could prove ot be a vital one as Atletico look to get their season back on track.
Check out the strike for yourself below:
I liked a @YouTube video https://t.co/n2oB1upFkN Thomas Partey Goal vs Deportivo vs Atletico Madrid 0-1 Highlights : LaLiga 4th
— Mr. Sexy Eyes (@SirEvansKonadu) November 4, 2017