Jordan Spieth has said that he has taken a "big step forward" in his preparation for The Open.
The American recorded a career-best 61 in the third round of the John Deere Classic and is in the lead going into the final round. He shot a seven-under 64 in round two.
"I made a big step forward today," Spieth told BBC Sport after round two.
"I wasn't feeling great after [Thursday]. But to come out today and shoot a solid round gives me a lot of confidence in my preparations for next week."
Spieth's chances of Open victory have been boosted by world number one Rory McIlroy's withdrawal due to injury.
Written by
Jonathan McIntosh
Jonathan McIntosh
