Jiri Lehecka knocked off top-seeded Spaniard Carlos Alcaraz on Thursday to advance to the semifinals of the Qatar ExxonMobil Open in Doha.

Jiri Lehecka notched his career-best victory at the ATP 500 event in Doha. The Czech faced world no.3 Carlos Alcaraz in the quarter-final and earned a 6-3, 3-6, 6-4 victory in two hours and nine minutes.

Jiri Lehecka produced one of the biggest wins of his career with a hard-fought success against Carlos Alcaraz at the Qatar Open.

World No. 3 Carlos Alcaraz found himself trailing in the second set to Croatia's Marin Cilic, but battled back for a 6-4, 6-4 win Monday in the opening round at the Qatar ExxonMobil Open in Doha.

Jiri Lehecka claimed the first Top 3 win of his career with a shock 6-3, 3-6, 6-4 win over Carlos Alcaraz to reach the semi-finals at the Qatar Open and continue his impressive start to the season.

Top seed Carlos Alcaraz withstood a charge from qualifier Luca Nardi for a 6-1, 4-6, 6-3 victory in the second round of the Qatar ExxonMobil Open in Doha on Wednesday. Spain's Alcaraz, ranked No. 3 in the world,

After beating Croatian Marin Cilicby a double 6-4 in the first round of the ATP 500 tournament in Doha, and Italian Luca Nardi by 6-1, 4-6 and 6-3 in his next match, Carlos Alcaraz

World No. 3 Alcaraz took on No. 25 Jiri Lehecka in the quarterfinals. Lehecka overpowered Alcaraz throughout the two-hour, nine-minute match, taking the win in three