Maksim, 37, hurt himself during rehearsal on Friday and therefore must watch his celebrity partner Heather Morris dance tonight from the sidelines.
"Sorry I was MIA. Tune in to @dancingabc today and all will be explained. Tough show for #teamMaksimumHeat and @heatherrelizabethh would have to hold it down for both of us," Maksim captioned a Monday, March 27 Instagram photo of Heather hugging him.
"Please show her your love and support while I work on getting my ass back to the ballroom. #DidNotSeeThisComing #WillBeBackBetterThanEver."
Good Morning America initially made the announcement Monday morning, hours before Dancing with the Stars' second Season 24 broadcast is scheduled to air at 8PM ET/PT on ABC.
Dancing with the Stars cameras were rolling when the incident occurred. While practicing choreography with the 30-year-old former Glee star, Maksim was mid-spin when he suddenly cried out in pain, hopped around on one foot, and then bent over to hold his injured right leg.
"It's my calf muscle," Maksim yelled out in a video clip obtained by GMA. "F-ck. It just felt like something hit it."
The severity of Maksim's injury remains unclear, but the pro dancer is reportedly receiving treatment.
However, the new dad -- who welcomed son Shai Aleksander with fianceePeta Murgatroyd in January -- will be sitting in the ballroom's audience on Monday night to cheer Heather on when she takes the stage with Dancing with the Stars' Alan Bersten, a Troupe member who will serve as her temporary partner until Maksim can return to the competition.
Heather has yet to comment on Maksim's injury, but the blonde beauty tweeted on Sunday, "I know Mondays are supposed to be dreadful but somehow now I'm excited for them.. who else is ready for tomorrow night?! #DWTS @DancingABC."
Many could argue Maksim and Heather entered the competition with a leg up on their competitors because she previously competed on So You Think You Can Dance and served as one of Beyonce's backup dancer on tour.
"To say that we just have this massive advantage, I think so, but I don't think we're the only ones that could pull off beautiful, beautiful numbers," Maksim told E! News earlier this month. "I'm ready for us to be scrutinized a little different and judged a little different and rightfully so, we'll do our best."