Justin Timberlake, Jessica Biel introduce son Silas, a Grizzlies fan

Hello, Timberbaby! Justin Timberlake and Jessica Biel debuted their newborn son Silas and shared his basketball affiliation online Sunday.

The "Suit & Tie" crooner introduced the little guy to the world by captioning a pic of his wife and son on Instagram, showing off the little baller's mug for the first time, as well as his proclivity for the Memphis Grizzlies.

The Timberlakes are ready!!! GO GRIZZ! #GritNGrind #Playoffs #BabyGrizzROAR

A photo posted by Justin Timberlake (@justintimberlake) on

"The Timberlakes are ready!!! GO GRIZZ! #GritNGrind #Playoffs #BabyGrizzROAR," the 34-year-old Tennessee native wrote while mama Biel cradled a Grizzlies jersey-clad Silas in the shot.

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The Grizzlies took down the Portland Trail Blazers on Sunday in the first round of the NBA playoffs, and "baby grizz" seemed to be ecstatic about the whole thing — though he likely had no idea what was going on.

The 'N Sync veteran and the "7th Heaven" alum, who wed in Italy back in 2012, welcomed their firstborn earlier this month, though details about the tot were sparse when news of his arrival first broke.

The couple — said to be "ecstatic" about their newest addition — designated him Silas Randall Timberlake, giving him a middle name that matches his dad's.

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But maybe Grizz wasn't completely off the table.

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