Ex-tennis champion Boris Becker has dropped his claim to have diplomatic immunity from bankruptcy.
The three-time Wimbledon winner had said his appointment as a Central African Republic (CAR) diplomat gave him protection from any legal claims.
Alexander Zverev stunned world number one Novak Djokovic in straight sets to win the season-ending ATP Finals and earn the biggest victory of his career.
Djokovic, 31, was the heavy favourite to win a sixth finals title but was outclassed 6-4 6-3 by the German.
Roger Federer paid for his errors as he lost to Japan's Kei Nishikori in his opening group match at the ATP Finals.
The Swiss, chasing a 100th career title at the season-ending event, lost 7-6 (7-4) 6-3 to the world number nine.
Novak Djokovic (left) replaced Rafael Nadal at the top of the world rankings in October
A planned exhibition match between Novak Djokovic and Rafael Nadal in Saudi Arabia has been called off because of the Spaniard's ankle injury.
The world's top two ranked players were due to meet in Jeddah on 22 December.
Ukrainian twins Gleb and Vadim Alekseenko have been banned from tennis for life and each fined $250,000 (£190,018) for match fixing.
The pair were found guilty of multiple match-fixing offences at a number of ITF Futures tournaments between June 2015 and January 2016.
