This is the Latest Breaking News involving these 3 Boston Celtics players: Kemba Walker: Out till January after receiving a stem cell injection in his left knee! Tristan Thompson: Suffered a minor injury before signing with the Celtics, being limited on the 1st week of training camp Romeo Langford: He's expected to return in 4 to 5 months! #KembaWalker #TristanThompson #RomeoLangford