The Houston Rockets immediately called Brent Barry as teams were able to start talking to free agents on Tuesday, the Houston Chronicle is reporting, but they may have hit a snag in trying to keep Carl Landry.

The Rockets have asked for Landry to undergo more in-depth testing of his right knee, which was injured during the season, before they would extend an offer.

?We?re only making an offer if he gets a more detailed examination than imaging,? Rockets General Manager Daryl Morey said.

Morey did not say that there were specific concerns, only that the team wanted as much information as possible before making an offer.