Alexander Peya enjoyed a successful doubles career and in a recent interview, he was asked what makes Jack Sock and Nick Kyrgios good doubles players.
Sock and Kyrgios are mainly focused on singles but both are Grand Slam champions in doubles. Sock is a multiple Grand Slam champion in doubles and he was once ranked at No. 1 on the doubles rankings list so when asked Peya said:
"For me, Jack Sock was always the best. Because he brings a lot with him. With his serve, but above all with his forehand, he has weapons that can hardly be defended in doubles. He always finds gaps somewhere on the pitch. And even if you don't see it that way sometimes: He is very athletic and fast. And understands the game very well. It is not always correct if one assumes optimal positioning. But Jack makes up for a lot with his anticipation."
Turning his attention to Kyrgios, Peya said:
"Between Sock and Kyrgios there is still a bit in between. With Kyrgios, for me it's even more the serve that makes him incredibly strong. And also his attitude, which might make things difficult for him elsewhere. But he's completely relaxed, doesn't let any pressure hit him. How relaxed he served the Australian Open! He doesn't think about anything for a second. Nevertheless, Jack Sock is still a lot more unpleasant in terms of the game style."