The J.R. Smith/Chris Smith package deal is shaping up.

The Post has learned point guard Chris Smith, J.R. Smith’s brother who injured his knee during Knicks training camp, has fired his agent, Marc Cornstein, and will hire J.R.’s rep, CAA superagent Leon Rose, who also handles Carmelo Anthony.

J.R. Smith is expected to opt out of his contract and re-sign with the Knicks in a four-year deal starting at about $5 million because the Knicks own his early-Bird rights rules.

The Knicks could be outbid for J.R. Smith by an under-the-cap team, though it’s unlikely considering his playoff flop. But having Chris Smith as part of the package has convinced the Sixth Man of the Year he wants to stay. After the Game 6 loss Saturday, the embattled Smith said “I want to retire a Knick.’’ Keep Reading Here

(from the post)