Donnell wasn't targeted in Saturday's preseason game against the Bills.
According to NJ.com's Dan Duggan, the Giants opened Saturday's game in a two-TE formation, allowing both Donnell and Will Tye to start. However, Tye went on to catch a pair of passes on the opening drive, eventually finishing the evening as Big Blue's only player with multiple receptions. Tye entered camp as a slight favorite for the starting job, and he seems to be moving closer to locking it down, though Donnell does still have time to make a push. The Giants might also end up using a rotation in the regular season.