Nathan Healey undergoes emergency heart surgery
THE international tennis community is in shock after former Australian player and coach Nathan Healey underwent emergency heart surgery.
The New South Welshman, once regarded as one of the nation's finest prospects and later coach to Lleyton Hewitt, is believed to have undergone a 12-hour operation in the US.
A string of players, including Perth's Matt Ebden, American Ryan Harrison and Scot Jamie Murray, joined a score of coaches and commentators in expressing their concern over Healey on Twitter.
Healey, 32, worked with Hewitt until 2010.
He has lived in Philadephia for several years and, with his wife Marnie, has two young children.
He turned professional in 1998, playing on the men's professional tour for 12 years, reaching career-high rankings of 58 in doubles and 159 in singles.
He then turned to coaching, collaborating with Hewitt.
Healey last season represented the Philadelphia Freedoms in World Team Tennis.
The Australian recently opened a tennis academy in Malvern and has worked with youth groups.