The preseason has already kicked off in the NBA and there are some key injuries to monitor as fantasy draft day approaches.

Chris Bosh, F (TOR): Chris Bosh is having some knee problems, which appear to be more serious than some people are letting on. Bosh is also dealing with plantar fasciitis, which hurt Tim Duncan's fantasy production two seasons ago. He recently had an MRI on his knee, as the soreness seems to be persisting. The good news is that the team has basically shut him down for the time being, which is the only way his fasciitis will heal. Even so, these are the types of injuries that might linger throughout the season.

Etan Thomas, F (WAS): Etan Thomas underwent open-heart surgery on Thursday and is expected to miss the entire season. First of all, I hope he heals fully and comes back healthy for next season. For the time being, bump up Brendan Haywood on your draft sheets. Haywood could have been a decent starter at center last year but was mired in a time-share with Thomas. Now the job should clearly be his with Andray Blatche backing him up.

Rashard Lewis, F (ORL): Although he had to be helped off the court, a sprained ankle doesn't concern me too much with Rashard Lewis. X-rays were negative and he should have enough time to rest before the regular season kicks off.

Monta Ellis, G (GS): After nearly being paralyzed, Monta Ellis escaped with a just a minor neck sprain. All signs are go with Ellis and he appears to be back battling Marco Belinelli for the starting shooting guard spot.

Eddy Curry, C (NYK): Eddy Curry is dealing with a lingering shoulder injury, which probably won't hamper him too far into the season, but is limiting his ability to build chemistry with his new teammates, particularly Zach Randolph. The New York Knicks look great on paper with all of their new additions but might not be much more than that on the court because of chemistry issues. Wins and losses shouldn't affect his fantasy value too much, though.