Tennis: Giant killer's Kiwi coach relaxed about possible split

Nick Kyrgios' coach says he wants what's best for the rising tennis star, even if it means a parting of the ways after a career-defining fortnight at Wimbledon.

New Zealander Simon Rea has overseen the 19-year-old's rapid rise from outside the world's top 800 at the start of last year to the quarter-finals of a Grand Slam.

But the partnership's future is unclear, as Kyrgios and his family want him to return to his Canberra home after spending much of the past year with Rea in Melbourne.

Rea was immensely proud after Kyrgios' run was ended by Milos Raonic yesterday, and said discussions about the future would start soon.

"Nothing's been decided in terms of what his programme and coaching structure look like," Rea said.

"We just made an absolutely concrete commitment to get through to the end of Wimbledon and then, when the dust had settled from here, we'd discuss a few of the logistical challenges."

Kyrgios was again vague when asked about his coaching situation but he paid tribute to Rea.

"I've had the best week of my life," Kyrgios said.

"He's done a great job there. I haven't really thought too much about it yet."

The teenager's ranking will soar into the top 70 next week, guaranteeing him automatic qualification for future Grand Slams.

- AAP