Hayden Panettiere, a slight, 23-year-old knockout is reportedly planning to wed Wladimir Klitschko, the 37-year-old heavyweight champion who makes a living by knocking people out.

A source told Us Weekly yesterday "Very few people know, and she isn't wearing her ring publicly yet." 

The two broke up in 2011 due to constantly being away from each other, according to reports. At the time, Panettiere told People "Even though we've decided splitting up is best for both of us, we have an amazing amount of love and respect for each other and remain very close friends."

Klitschko had said, "We had a great time together, but it's not that easy to manage a relationship between two continents," he says. "I have a lot of respect for Hayden as a person and as a friend, and I believe we'll keep our friendship even after the separation."

The pair have certainly gotten back together, though, because they were seen sharing kisses together at a Miami Heat and Charlotte Bobcats game in Miami on March 24.

Panettiere and Klitschko have not confirmed that they are even back together; Panettiere told OMG! in mid-January that the two were just "good buddies." The source speaking to Us Weekly, however, advised them to be on the lookout for a summer wedding.

In the ring, Klitschko and his brother Vitali have dominated the heavyweight boxing division for years. Both are titleholders but have refused to face each other to unify the belts with one champion. Wladimir is 59-3 in his career with 50 victories coming by way of knockout. He has emerged victorious in his last 17 bouts, and his last loss came in April of 2004, when he lost by technical knockout to an unheralded opponent named Lamon Brewster. Klitschko avenged that loss in 2007 when the referee stopped his rematch with Brewster in the sixth round.

Tags: Hayden Panettiere wladimir klitschko