The Giants haven't been playing their best baseball over the last four games, and Marco Scutaro has the diagnosis.
The Padres handed the Giants their second straight loss in San Diego, courtesy of a Marco Scutaro error on a ball hit by Nick Hundley in the 12th.
Jeremy Affeldt felt fine after a bullpen session on Saturday, and if Monday's session goes well, he could be activated on Tuesday.
It came three days ago, and they didn't even score because Pablo Sandoval was thrown out at the plate.
The Giants need Tim Lincecum to pitch as efficiently and effectively as he can. He did that Friday night in San Diego, but the team lost.