It can’t be easy watching your boyfriend dodging punches in front of hundreds of screaming fans.
But Hayden Panettiere found a novel way to calm her nerves while cheering for on-again boxing boyfriend Wladimir Klitschko.
The 23-year-old grabbed hold of her breasts, which have caused much speculation following their recent increase in size.
Being chief cheerleader is something that surely comes naturally to Hayden, having played one in her breakout Heroes role for four years.
And Hayden easily slipped back into the role to support Wladimir in his heavyweight title bout against Francesco Pianeta in Mannheim, Germany.
Hayden and Klitschko, 37, began dating in 2009 and she previously sat ringside for his 10th round knockout win over Samuel Peter in September 2010.
The couple broke up in May 2011, but last month rekindled their romance.
Hayden wore a peach knee-length halter top dress with a black band around her neck and black trim along the top.
The actress had her blonde hair parted down the middle and wore minimal make-up to the match.
She was joined at her ringside seat by Natalia Egorova, the wife of Wladimir’s boxing brother Vitali Klitschko.
German tennis legend and former Wimbledon champion Boris Becker also was seated next to Hayden for the boxing match.
Wladimir retained his WBA, IBF and WBO world heavyweight titles when the referee stopped the fight in the sixth round after Pianeta had taken enough of a pummeling.
Wladimir and Hayden look like a rather odd couple with her standing at just 5ft 2in, while her Ukrainian boyfriend checks in at 6ft 6in.
Hayden previously dated her Heroes co-star Milo Ventimiglia and American football player Scotty McKnight.
The actress currently stars in the musical drama Nashville as up-and-coming pop country singer Juliette Barnes.