American teenager Ryan Harrison has ended his brief coaching experiment with former doubles standout Christo Van Rensburg, TENNIS.com has learned.
In February, Harrison split with coach Martin Damm and began to travel with his father and coach Pat again. Last year, the 18-year-old Harrison worked with USTA coaches Jay Berger and Diego Moyano.
Currently considered the U.S.' best pro prospect, Harrison has had an up and down 2011, qualifying for Brisbane but then losing to Robin Soderling; falling in straight sets to Adrian Mannarino at the Australian Open; winning the Honolulu Challenger, falling in the first round of Memphis qualifying to Bjorn Phau; and losing in the first round of Delray Beach to Florent Serra. Currently ranked No. 156, Harrison has reached the semifinals of the Dallas Challenger.
Another American teen, Christina McHale, has begun to travel with USTA coach Jay Gooding. Currently ranked No. 111, McHale, 18, has received a wildcard into Indian Wells.—Matthew Cronin