Ukrainian boxer Wladimir Klitschko has reportedly rekindled his relationship with American actress Hayden Panettiere.

The 36-year-old, who dated the TV and film star between 2009 and 2011, was spotted spending time with the former Heroes actress in Florida, where Klitschko is based.

While neither have publicly claimed that they are back together, the couple were seen holding hands while taking a stroll in Miami, according to the Daily Mail.

Panettiere is thought to have visited the boxer twice in just a few weeks following her split from boyfriend Scott McKnight.