A month after being defaulted for striking a line judge with a ball while playing Carreno Busta in the U.S. Open fourth round, the 33-year-old Serbian found himself in trouble once again.
This time it was nothing more sinister than pains in his neck and arm as Djokovic lost the opening set to the 17th seed — the first one he has dropped in the tournament.
Djokovic looked flat and had to save break points early in the second set before raising his game to level the match.
It looked plain sailing when he led 3-0 in the third set before a dip allowed Carreno Busta back but Djokovic saved a break point at 3-3 before pulling away.
Djokovic, bidding for a second French Open crown, produced several loud roars as he tried to fire himself up.
Carreno Busta hung on gamely but Djokovic was superior in the big moments and one break in the fourth was enough to set up a semifinal clash with Greek Stefanos Tsitsipas.
French Open : Greek Stefano Tsitsipas enters semifinals, beats Rublev in straight sets
Both players competed fiercely in the opening stages but pressure seemed to get the better of the Russian 13th seed when he served for the first set.
Tsitsipas, 22, took advantage to turn the tide and earn a 7-5 6-2 6-3 win.
He will play top seed Novak Djokovic or 17th seed Pablo Carreno Busta for a place in Sunday’s final in Paris.
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In the Indian Sub-Continent, French Open will be broadcasted LIVE on Star Sports 2 and Star Sports Select 2. The tournament will also be streamed LIVE on Disney+ Hotstar.
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