World number one Novak Djokovic raced over to shake hands with tennis legend Pete Sampras after a second-round win over Bjorn Fratangelo at Indian Wells.
American Sampras, a 14-time Grand Slam winner, was in the stands as the Serb beat Fratangelo 7-6 (7-5) 6-2.
"It's a thrill to see someone I looked up to when I was a kid," said 31-year-old Djokovic.
"I was pleasantly surprised but felt my nerves kick in. I don't get to see him very often and wanted to impress him."
Djokovic was playing his first match since winning the Australian Open in January and conceded an early break to his 25-year-old American opponent, ranked 128th.