World has yet to see the best of McKeown: Welsh

MELBOURNE : Australia's Kaylee McKeown has already set world records and bagged four Olympic medals but the Queensland juggernaut's best is yet to come, says five-times world champion Matt Welsh.

After snatching the 200m backstroke world record in March, 21-year-old McKeown has been in ominous form in the lead-up to next month's world championships in Fukuoka.

She fell 0.05 seconds short of her 100m backstroke world record (57.45) at world championship trials in Melbourne on Wednesday, a day after a dominant win in the 200m individual medley.

Welsh, who won a backstroke title at the 2001 world championships, was impressed by McKeown at the Melbourne Sports and Aquatic Centre, seeing a rising talent who could one day be counted among the greats of Australian swimming.

"It's absolutely incredible. She's 21, she's got so much more to give," Welsh told Reuters.

"She's mentally and physically strong. Just walking on the pool deck you can see the strength in shoulders and arms.

"But in the race, she stays calm. She's able to pace things really well.

"We haven't seen the best from her yet but we've seen incredible things already."

Olympic 100m and 200m backstroke champion McKeown has also shot into medal contention for the 200m individual medley (IM) after being pipped to gold in the event by American Alexandra Walsh at the world championships in Budapest last year.

McKeown's versatility means she could also help Australia's bid for the relay medley title in Japan by swimming the breaststroke leg rather than her favoured backstroke.

Australia's swim team will use Fukuoka as a yardstick to measure progress in the lead-up to next year's Paris Olympics.

Expectations are high after the team took an Australian record 21 medals, including nine