McKellar breaks rib during `Dancing With the Stars` rehearsal

Los Angeles: Actress Danica McKellar broke her rib while getting ready for next routine on `Dancing With the Stars` with partner Val Chmerkovskiy.

McKellar, 39, and her partner have consistently remained at the top of the leader board during Season 18 of the series, reportedly.

"So... I broke a rib in yesterday`s DWTS rehearsal. Trying my best to pull thru and could use your prayers!! Had rehearsal today.. It`s tough dancing with a broken rib," she posted on Twitter.

The dancing duo earned a 39 out of 40 for their `Beauty and the Beast` Disney routine. Last week, they earned a 36 out of 40.