ANAHEIM, Calif. -- Yankees right fielder Aaron Judge wasn't on the field Friday night when he was being imitated while the Los Angeles Angels were taking batting practice.

Like Judge pretty much on a daily basis, two-way rookie sensation Shohei Ohtani put on a show rocketing BP fastballs way out of Angel Stadium.

It wasn't long before Judge saw Ohtani's left-handed power with his own eyes.

Facing the Yankees for the first time, the right-handed pitcher/designated hitter homered over Judge's head deep into the right-field seats in his first at-bat facing All-Star righty Luis Severino in the second inning.

"It's impressive what he's been doing this year," Judge said. "He had that home run (on Friday) and how his season has been going pitching and hitting, it's going to be fun to watch."

The Yankees might not see Ohtani anymore this weekend because he left Friday's game for a pinch-hitter in the seventh inning after suffering a mild ankle sprain. He's not in Saturday's lineup and is questionable to DH on Sunday.

The right-hander wasn't scheduled to pitch in the weekend series.

Ohtani, who is having success both as a DH and starting pitcher in his first season since leaving his native Japan at age 23 to play Major League Baseball.

At the plate, Ohtani is batting .341 in 12 games with four homers and 12 RBIs in 46 at-bats. As a pitcher who throws 100 mph, he's 2-1 with a 4.43 ERA in four starts with 26 strikeouts in 20 1/3 innings.

Here's more from Judge on why he's so impressed with Ohtani:

"That he's pitching and hitting in the major leagues. He's going out there throwing a hundred and commanding his pitches, and on the hitting side of it being not only to hit for a good average, but hit for power.

"He's got such a short, quick, compact swing. It's efficient. You feel like he's swinging at a lot of balls that are in the strike zone. He doesn't chase too much. It's pretty fun to watch.

"It's only one game I've seen him, but I'm excited to see him down the road."

Randy Miller may be reached at rmiller@njadvancemedia.com. Follow him on Twitter @RandyJMiller. Find NJ.com on Facebook.