(Reuters) - Rickie Fowler knows he is capable of getting into the major championship mix and has what it takes to win a big title after claiming last year's Players Championship. "Next step would be winning a major," American Fowler, 27, told reporters on Tuesday at Oakmont Country Club, site of this week's U.S. Open. Fowler finished in the top five at each of the four major championships in 2014 and enjoyed his first multiple victory season on the PGA Tour last year by also claiming victory in the Deutsche Bank Championship in the FedExCup playoffs. More...