Scotland international Boyd was alleged to have spat at Hart as the pair confronted each other after Boyd fell under the England goalkeeper's challenge in the box.

Hart was booked by referee Lee Mason and as a result he will face no further action.

Boyd is facing a three-match ban, which could rule him out of the Tigers' upcoming Premier League matches against West Brom, West Ham and Stoke.

After Saturday's match, which Hull lost 2-0, Boyd insisted Hart should have been sent off, saying: "He didn't nut me but he's put his head in, so he should have got sent off really."

Television footage appeared to show Boyd spitting in Hart's direction, but Hull manager Steve Bruce defended his player by saying: "George Boyd would not do that, not a chance -- not deliberately, anyway. He is as honest as they come."