Murray:"I'll definitely do a marathon at some stage, but not while I'm still playing"
Andy Murray has called it an "amazing effort" for Caroline Wozniacki to run a marathon while still playing, and says he'd like to run one once he retires.
"I'll definitely do a marathon at some stage, but not while I'm still playing," he said at Cincinnati. "That's an amazing effort she's doing that while playing, because it takes a lot of training, a lot of hard work."
Wozniacki has announced that she has entered herself in the New York City Marathon in November. "I'm working out a lot and I'm running long runs as well," she said.
Murray said he expected the 23-year-old to have a good performance.
"I'm assuming she will want to get a good time as well," he said. "She's pretty competitive. She'll have to train hard."
Murray's coach, Amelie Mauresmo, also ran the New York City Marathon as a retired player.