KOHLER, Wisconsin (Reuters) - Bryson DeChambeau said on Tuesday that he and U.S. Ryder Cup team mate Brooks Koepka have made progress in improving their frosty relationship.

DeChambeau, speaking to reporters at Whistling Straits where the biennial team competition against holders Europe begins on Friday, suggested the feud has been driven by a lot of external factors and that the two have all but settled their differences.