What happened: Dallas matched New York's two-year, $4.7 million offer sheet on restricted free agent Moussa Cisse, agents Yann Balikouzou and Kevin Bradbury of LIFT Sports Management told ESPN. The 6-foot-11 center had signed the Knicks' offer sheet Saturday before Dallas exercised its matching rights.

Why it matters: Offseason roster rules let Dallas match without cutting a player, keeping Cisse in the frontcourt rotation heading into training camp. The move ends the 48-hour window the Mavericks had to respond to New York's sheet.

What to watch: Cisse stays under contract with Dallas for two seasons; the deal becomes fully guaranteed October 1.