Andy Murray made a losing start on day one of the International Premier Tennis League in the Philippines, despite teaming up with Maria Sharapova.
Manila Mavericks' star players Murray and Sharapova lost in the mixed doubles before Marin Cilic beat the Scot 6-5 in singles as the UAE Royals won 29-24.
The four-team event takes place in Manila, Singapore, Delhi and Dubai, with the final on 13 December.
Murray is only scheduled to play over the three days of the Manila leg.
The ties are played over five sets in varying formats, with Murray and Sharapova the highest-profile pairing on day one but still going down 6-4 to Nenad Zimonjic and Kristina Mladenovic.
Serena Williams, Roger Federer and Novak Djokovic are among the other leading names due to take part, along with former champions including Pete Sampras, Andre Agassi, Goran Ivanisovic and Pat Rafter.
With ties decided by the total accumulation of games, Manila's challenge came to and end when Murray lost to Cilic in a decisive five-minute shoot-out - one of a number of innovations in the format.