AceShowbiz -

Hayden Panettiere is reported to be dating her ex-boyfriend, boxer Wladimir Klitschko, again. Two months after she split from football player Scotty McKnight, she flew to Florida to visit Wladimir. While in Florida, she was spotted walking Wladimir's new puppy outside his beach-front pad on February 19, while the 36-year-old Ukranian was paddleboarding in the ocean.

"We've been friends for five years now," Hayden said when she landed on LAX in early January. "We're just good buddies." Though the 23-year-old actress kept denying the on-again relationship, on February 18, they were photographed sitting and cuddling on a couch at Taco Beach Shack in Hollywood, Florida.

Hayden and Wladimir started dating in 2009 and split after a year and a half. "They never fell completely out of touch," an insider said shortly after the couple split in 2011. In a statement announcing their split, Wladimir said, "We have had a great time together. But more and more we realised how difficult it is to maintain a relationship when living on two continents. I cherish Hayden as a person and woman and I'm sure we will stay friends."

One month after the split, Hayden dated Scotty who formerly played for the NY Jets. The relationship ended last year. However, another insider said that it wasn't a nasty breakup as the two were still "really good friends."

Prior to dating those athletes, Hayden dated Steve Jones, "Entourage" star Kevin Connolly, "One Tree Hill" actor Stephen Colletti and her "Heroes" co-star Milo Ventimiglia.