McKellar breaks rib during 'Dancing With the Stars' rehearsal

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 ABC series, reported Us magazine.

"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.