Los Angeles Clippers head coach Doc Rivers is referring to new center Joakim Noah as “a mysterious piece.”

Noah signed his 10-day contract with the Clippers on Monday. Joe Vardon of The Athletic had a dispatch from LA on Sunday:

As of the start of the game, the Clippers had not yet announced the signing of Noah. “A mysterious piece,” Rivers called him, because, I guess, league rules prevent him from acknowledging what everyone already knows.

Noah was at Sunday’s game, seated near center court, about 16 rows up. Whomever he was with was enjoying a nice beer. For his part, Noah politely declined my interview request.

“I don’t think now is the right time,” he said, wearing a knit sweater with a palm tree and his hair flowing from under his “New York” stocking cap — looking like he’ll fit right in on Venice Beach.

Noah played 42 games for the Memphis Grizzlies last season. He averaged 7.1 points, 5.7 rebounds and 2.1 assists while shooting 51.6 percent from the field.

Joakim is 100 percent healthy again after rehabbing his Achilles injury.

Noah worked out for the Los Angeles Lakers after LA lost DeMarcus Cousins to an ACL tear. The Lakers wound up signing Dwight Howard over Noah and Marreese Speights.

Noah, a former All-Star and Defensive Player of the Year, has career NBA averages of 8.8 points, 9.1 rebounds and 2.8 assists in 667 games with the Chicago BullsNew York Knicks and Grizzlies.

The Clippers are 43-20 on the season. They are in second place in the Western Conference standings.

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