Mobley and Thomas did not practice with the Knicks Monday, with the team saying "paperwork" on their physicals hadn't been completed. Mobley evidently has a long-standing heart issue that the teams he's played for have been aware of. It's never been an issue before, but the Knicks are doing their due diligence. They have until 6:30 p.m. EST to complete the trade, which can be voided if any player involved fails his physical.
The Knicks are extremely unlikely to scrap a trade that alllowed them to dump Randolph's $48 million remaining over three years.
UPDATED 12:42 p.m. EST: A person familiar with the trade negotiations told CBSSports.com that Mobley's heart condition was widely known among team executives -- including Walsh -- and that the Knicks president could be trying to squeeze something else out of the Clippers. (Walsh covets Marcus Camby, whom Mike Dunleavy wouldn't part with in the initial deal that was agreed to Friday. Short of that, Walsh would like a draft pick since the Knicks' first-round pick in 2010 is committed to Utah.)
The person, who spoke on condition of anonymity, cautioned that Dunleavy would not sweeten the trade offer and "would walk away from the deal instead." This is a negotiating tactic more than anything. The Knicks do not want to jeopardize the cap-dumping benefit of trading Randolph. Mobley signed a waiver on the heart condition with his current contract, so the Knicks would have no financial risk. It's unlikely to be an issue anyway, as Mobley has never missed a game in his 11-year career due to the condition.