Djokovic, Sampras trade stories, strokes and more

In honor of the upcoming 50th edition of the ATP Finals, the ATP is unveiling a new web series that brings together players from all different eras to discuss their experiences at the end-of-year event.

Tim Henman helped Pete Sampras and Novak Djokovic kick off the series by discussing their most memorable moments at the event, the pros and cons of being world No. 1, and even which strokes they would like to trade amongst each other.

"I want that return of serve," Sampras said. "Everyone always ask me who would give me a hard time if I was playing today, it would be Novak because of his return. With Andre, I could always get it by him if I was picking my spots, but with Novak, it would be tough to get by him because of his stretch."

The 14-time Grand Slam champion also wouldn't mind picking up Djokovic's court speed. The Serbian was eager to exchange his return and speed for a couple of Sampras' specialties.

"I wouldn't mind exchanging my return and speed for your serve and volley game," he said. "I think I would take that, would be lovely to experience that kind of matchup."

Djokovic shared how much he admired Sampras growing up and remembers watching him win the ATP Finals on multiple occasions. The 17-time Grand Slam champion was always inspired by Sampras' mental toughness and his ability to play under pressure.

"I cannot say I was copying Pete because my game is completely different from his, but I just love the way he dealt with pressure and just played his best when he needed it the most," Djokovic said. "He always just found the first serve and always held his nerves."

The two agreed that playing against the best eight players at the ATP Finals is a privilege and is always a special occasion. Both Sampras and Djokovic have won the tournament five times and both have finished six seasons in the No. 1 spot.

"It took a lot out of me emotionally," Sampras said. "The years and years staying at No. 1 and staying on top of the game year after year, as Novak understands. It's very hard to stay at No. 1 and to do it six years in a row... For me and my career, I look back and I've won a lot of majors and I've done some great things but staying No. 1 all those years, I think was my biggest achievement."

"Six years in a row?" Djokvic said. "I don't know how you did it Pete, but huge respect for that."

Djokovic's best streak is two years in a row though his career is far from over. He was able to relate to Sampras about the highs and lows, the stress and tension that can at times be overwhelming when fighting to stay on top.

The 33-year-old will be vying for his sixth ATP Finals title starting on Sunday in London.