New Delhi: Czech Republic's No 1 player Jiri Vesley on Friday said that he felt exhausted after just four games and simply failed to sustain himself against the lower-ranked Indian Somdev Devvarman in his Davis Cup World Group play-off tie here. Somdev, ranked 164, stunned World No 40 Vesley 7-6 (3), 6-4, 6-3.

"It was not normal for me to feel so exhausted after just 3-4 games. I am having some niggles. I think I failed to cope with the conditions here," said Vesley.