It appears more likely that Peyton Manning will play in the NFL next season as his arm strength increases, according to sources. Manning's rehab has improved steadily in recent weeks as he regains strength in his grip and triceps, two areas weakened by nerve damage. The result has been heightened throwing strength, though the rate of improvement is unclear. However, it's been enough to have those around the quarterback convinced that he'll be ready to play in 2012. One source said Manning "feels good" about where he is in the recovery process.