"It's very new," a source toldUs Weekly of the couple's alleged relationship. "They were set up through friends. They just started dating."
Representatives for the Dancing with the Stars pro, 33, and Upton, 21, declined comment when contacted. However, a source close to Upton, who has appeared on the cover of Sports Illustrated twice and is known for her curves, told Us they're just longtime friends and are not dating.
"He wasn't feeling her anymore," a source told Us at the time.
"[Murgatroyd] didn't want it to end," another source added.
Chmerkovskiy, who starred in the Ukrainian version of The Bachelor in 2011, was also previously engaged to Dancing with the Stars pro Karina Smirnoff but the couple called it quits in September 2009.
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