The former One Tree Hill star took to social media over the weekend (19-20Nov16) to reveal her dance partner, Gleb Savchenko, was ill, and suggested she was also suffering.

Alongside a photo of the pair in a dance studio, with Gleb wearing a surgical mask, she wrote: "One of us has the flu... well maybe two of us. @Gleb_Savchenko. Excuse me while I go vitamin C overdose".

In another snap, Jana modelled the face mask as she posed alongside Gleb's rehearsals replacement Alan Bersten, and joked, "Im (sic) being quarantined with @Dance10Alan. Please feel better @Gleb_Savchenko #flu".

Jana and Gleb, who was also sidelined with a knee injury earlier this month (Nov16), have made it to the semi-finals of the U.S. ballroom dance competition's season 23.

Despite Gleb's illness, a show representative tells Entertainment Tonight he is back on his feet and is in rehearsals with Jana ahead of Monday night's (21Nov16) dance-off.