LONDON, Sept. 12 (UPI) -- Nikolay Davydenko, ranked No. 6 in the world, was cleared in an investigation into betting patterns on a match in which he lost to a lower-ranked opponent.
The ATP started its investigation after Davydenko lost to Martin Vassallo Arguello, who was ranked 87th at the time, on Aug. 2, 2007. Vassallo Arguello was ahead 2-6, 6-3, 2-1 when Davydenko retired from the match, saying he had an injured foot.