Ryan Mathews was still out of breath 10 minutes after practice had ended.
Chip Kelly's up-tempo workouts will do that to first-timers, but Mathews' workload may have increased slightly with DeMarco Murray's absence. Murray sat out Sunday's team drills because of dehydration and on Thursday an illness sidelined the Eagles' prized acquisition.
Mathews, meanwhile, has plugged along under the radar, and would have dashed into the locker room unnoticed had a reporter not flagged him down. Ever since he signed with the Eagles, he's been somewhat of a forgotten man in Kelly's offseason makeover.
Which is fine with Mathews.