He definitely lost some lift as I would it call it, you call it explosiveness.
Since 04-05 and I am not counting 03-04 his ten game rookie year for obvious reasons. He has played in 454 of 574 possible games. That is roughly only 80% of the games. So he has missed 20% or 1 out of five games. Some of these were DNP of course and early in his career he got some roster rigging I am sure. But here is his injury history folks.
2011/02/25 Strained left MCL, day-to-day.
2011/01/25 Missed 43 games (right knee surgery).
2010/09/27 Right knee surgery, sidelined indefinitely.
2010/03/31 Missed 2 games (left knee injury).
2010/03/26 Left knee injury, day-to-day.
2010/03/03 Missed 1 game (flu).
2010/03/02 Flu, day-to-day.
2009/01/21 Missed 5 games (strained left shoulder).
2009/01/11 Strained left shoulder, day-to-day.
2008/12/28 Missed 1 game (left shoulder injury).
2008/12/26 Left shoulder injury, day-to-day.
2008/06/17 Missed Game 5 of the NBA Finals (strained left shoulder).
2008/06/15 Strained left shoulder, day-to-day.
2008/02/19 Missed 3 games (strained left shoulder).
2008/02/10 Strained left shoulder, day-to-day.
2007/12/14 Missed 1 game (toe injury).
2007/12/12 Toe injury, day-to-day.
2006/12/27 Missed 10 games (plantar fasciaitis in left foot).
2006/12/06 Plantar fasciaitis in left foot, inactive list.
2006/03/12 Missed 13 games (shoulder injury).
2006/02/10 Shoulder injury, day-to-day.
2004/04/14 Flu, injured list.
2004/01/23 Missed 19 games (tendinitis in right knee).
2003/12/30 Tendinitis in right knee, injured list.
2003/12/13 Missed 9 games (tendinitis in right knee).
2003/11/28 Tendinitis in right knee, injured list.
2003/11/14 Missed 8 games (bilateral patellar tendinitis).
2003/10/27 Bilateral patellar tendinitis, injured list.
http://www.tsn.ca/nba/teams/players/bio/?id=953I would never call him fragile and we all know he doesn't lack toughness. But dude has a long history of injury issues albeit most of them minor. Lots of history of knee issues.