The article talks about the decline of Ray Allen...
But looking deeper into Allen's numbers, some alarming trends come into focus that paint the picture of a player for whom age is starting to be a factor.
Allen has had much more difficulty bouncing back on short rest. While playing in Seattle, his production actually went up when playing on consecutive days. In the season before joining the Celtics, he averaged 27.8 points in the second of back-to-back games.
In all three seasons in Boston, Allen's production dragged in those situations. This season, it has been particularly noticeable. Allen is averaging 15.3 ppg on no days' rest and shooting just 27.3 percent from 3-point range.

A similar trend has emerged late in games. One of the Celtics' primary options in the clutch, Allen has come up short on multiple occasions this season. However, it's not just the buzzer-beaters. In the final three minutes of the fourth quarter, Allen has a 35.7 field goal percentage. Back in the championship season of 2008, it was 46.9 percent.
These numbers could merely be the product of a small sample size or a shooting slump. However, given his age, one has to consider whether it could be a permanent downturn.
