The guests began the second-half brightly, having fun with extra of the ball and creating a lot of probabilities, however Moulden and the Palace defence handled their early strain.
The Eagles had been in the hunt for a go-ahead purpose and duly discovered it on the hour-mark. Glorious work down the suitable hand facet from Caleb Kporha noticed him discover a cross into an unmarked Umolu contained in the field, who completed on the first time of asking.
Palace’s lead lasted lower than 10 minutes, because the Spanish facet drew degree with 20 minutes to play. Unax Agote discovered himself on the scoresheet, ending after the ball wasn’t correctly cleared away from a Sociedad assault.
Probabilities got here and went for each side as the sport went on, with captain Justin Devenny seeing an effort on the sting of the field saved and Moulden standing tall to disclaim a late Sociedad flurry.
The end result signifies that Palace start their defence of their trophy with some extent. They sit in second place of Group D – two factors behind RB Leipzig.
Palace: Moulden (GK), Kporha, Jemide, Browne, Grehan, Rodney, Nascimento, Devenny, Marsh (Akinwale, 74), Mustapha (Gibbard, 81), Obou (Umolu, 44).
Subs not used: Izquierdo (GK), Sheridan, Austin, Grante.
Sociedad: Olasagasti (GK), Diaz de Alda, Agote, Beitia, Astigarraga, Lebarbier, Ramirez (Cabo, 58), Carbonnell (Agirre, 74), Osazuwa (Gorosabel, 58), Gorosabel (Garro, 77), Diaz (Samuyiwa, 77).
Subs not used: Zango (GK), Garro, Ropero, Samuyiwa.