Andy Murray has urged Kyle Edmund to take a more selfish approach to training if he wants to progress to the next level.
Edmund looks set to be the next star of British tennis after breaking into the world's top 50 for the first time.
The 21-year-old has taken some big-name scalps this year and faced Murray in the quarter-finals of last week's China Open.
He lost in straight sets as the Scot went on to lift the trophy, but he has all the attributes to move right to the top of the sport in the next few years.
The Davis Cup team-mates are off-season training partners but world number two Murray feels it might be time for the South African-born starlet to go his own way and tailor his sessions more towards his own personal requirements.
"He is the perfect practice partner," said Murray. "He will always be welcome but I think it's time he started thinking about himself and what his specific needs are from a training block in the off-season, rather than happily going along with mine.
"He has an excellent coach in Ryan Jones and a good back-up team. Now Kyle is a top-50 player he's got to become more self-centred in his outlook and really identify what he personally needs to work on."
Edmund's next test will be to take on US Open champion Stan Wawrinka in the third round of the Shanghai Rolex Masters.