* Haas seeking seventh PGA Tour win * Canadian DeLaet winless in 136 starts * Defending champion Spieth six back (Adds details, quotes) March 12 (Reuters) - Bill Haas looked at ease on the greens at the Valspar Championship in Florida on Saturday after a putting tip from Rickie Fowler helped him move into a one-stroke lead over Graham DeLaet after the third round. American Haas collected five birdies, including a 30-foot chip-in at the 15th, along with one bogey to card a four-under 67 on the Copperhead Course at Innisbrook Resort in Palm Harbor.
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