Magpies held but Bellamy's goal is enough to claim top spot
The Welshman collected his 10th goal of the season and his 11th for the club in Europe with just five minutes gone to give them the point they needed to avoid the Champions League drop-outs in the last 32.
Sporting responded with a 39th-minute equaliser from Custodio, but a Magpies' side comprising the only fit 11 senior players at the club, and a bench they could not fill, fought manfully to hold on.