British skipper Alex Thomson has carried out emergency repairs on his boat after hitting an unidentified object in the Indian Ocean in the Vendee Globe round-the-world race.
The collision happened on Sunday night and damaged one of the boat's two rudders and an electricity generator
The 37-year-old worked through the night on repairs.
"I have been unable to sail at 100% while managing this repair," Welsh-born Thomson said in a statement.
Thomson, 37, currently sits in fifth position in the prestigious non-stop solo race behind leader Francois Gabart, his French compatriots Armel Le Cleac'h and Jean-Pierre Dick and Swiss helmsman Bernard Stamm.
Thomson's statement added that he expected to have both rudders working again on Tuesday.
The Vendee Globe is a single-handed, non-stop round-the-world race, starting in France and covering 24,000 miles.