A compression wrap on Roger Clemens’ right forearm yesterday covered swelling, seam marks from a baseball and skin that was black and blue.

And while The Rocket and the Yankees don’t think the injury Clemens suffered Opening Day is serious, he didn’t throw his normal bullpen session yesterday, and isn’t scheduled to take his regular turn Saturday against the Blue Jays.

“I believe I am going Sunday, but you guys are asking the wrong person,” said Clemens, whose X-rays came back negative.

“But if for some reason Duque can’t, I will go Saturday.”

Orlando “El Duque” Hernandez returned to the club yesterday and tested his cranky right elbow in the ‘pen. He is slated to start Saturday so that Clemens can have another day of rest in order to get the fluid completely out of the bruised area.

Clemens took a shot off Carlos Febles’ bat leading off the eighth inning Monday but stayed around long enough to fan Joe Randa in the ninth to pass Walter Johnson on the all-time AL strikeout list and then split. Clemens bagged the 7-3 win.

There was enough fluid in the arm that Clemens’ arm was heavily wrapped yesterday and the medical staff didn’t want him throwing. He did everything else, including working his lower body in the weight room.

Clemens is scheduled to test the arm today provided he can grip the ball correctly.

Meanwhile, Hernandez, after pitching in a simulated game Monday in Tampa, said he is ready to work whenever the Yanks want him to.

“I did my job, I threw all my pitches,” said El Duque, who hasn’t faced major-league hitters since March 9, when he was lifted from a game with what was described as a fatigued elbow. “When given the chance, I will pitch.”