NFL.com's Ian Rapoport reported Friday that Rice has returned from Switzerland after leaving training camp this week to undergo a non-surgical treatment on his knee, according to a source who talked with the player.
Rice said later on Friday that he hopes his recent procedure will help him deal with his patellar tendonitis, according to KJR-AM.
Coach Pete Carroll told reporters Tuesday he was optimistic Rice wouldn't miss any game action, suggesting the receiver will be ready for the Seahawks' preseason opener Aug. 8 against the San Diego Chargers.
Our primary question is why Rice -- bothered by knee issues late last season -- would participate in a preseason tilt if questions remain about his health. With Harvin facing a long rehab from hip surgery, the Seahawks will ask Rice to play an every-down role for much of the season. No reason to rush to rush him back, but maybe Switzerland is just a magical place.
UPDATE: Carroll said during a news conference Friday that Rice will practice Sunday.