The 30-year-old lost to Austria's Dominic Thiem in the last 16 of the Monte Carlo Masters last week and looked far from his best in what was his second career appearance in Barcelona. Klizan claimed the first set in just 32 minutes before Djokovic broke the Slovakian's serve twice to take the second. Klizan snatched a crucial break in the eighth game of a tense final set and went on to claim his first career victory over Djokovic in five meetings. World No 1 Nadal, who also had a bye to the second round, packed out the main court at the Real Club de Tenis in Barcelona which is named after him.
Martin #Klizan records his first win over #Djokovic - upsetting the former number one 6-2 1-6 6-3 to make it to R2 in Barcelona#Djokovic now 0-2 lifetime in the Spanish city pic.twitter.com/47S4oLPNFG— Live Tennis (@livetennis) April 25, 2018
Nadal will now meet another Spaniard, Guillermo Garcia-Lopez, who progressed after 14th seed Kei Nishikori retired from his first match after experiencing pain in his right wrist. The 28-year-old Japanese, who lost to Nadal in the Monte Carlo Masters final Sunday, withdrew after losing the first set 6-3. He missed last year's U.S. Open and the Australian Open at the start of 2018 after injuring the same wrist in August.
Grigor Dimitrov secured his 1⃣5⃣th win of 2018 to reach the third round in Barcelona.Read More ▶️ https://t.co/znyOVHaEFZ pic.twitter.com/m5BHiHjvMu — ATP World Tour (@ATPWorldTour) April 25, 2018