WASHINGTON -- David Ortiz is a great player, Fernando Tatis admitted as much. But despite Ortiz's impressive two-home run performance Tuesday night, numbers don't lie: Tatis still has one on the Boston slugger -- as well as the rest of Major League baseball.

Ortiz's first-inning show on Tuesday, which saw him hit two three-run homers in a 10-run first inning against Texas, was reminiscent of Tatis' performance on April 23, 1999, when he hit two grand slams in one inning for the St. Louis Cardinals. The Mets' outfielder still stands as the only Major Leaguer to accomplish the feat.

"To hit two grand slams in one inning, who can expect that somebody's going to do that?" Tatis said of his performance eight years ago. "To me, it was amazing."

Asked to compare that performance with Ortiz's, Tatis heaped praise on the Red Sox power-hitting DH.

"What can I say about David?" Tatis asked. "He's unbelievable."

Looking back, Tatis said he didn't know at the time that his two grand slams had made history. He said he couldn't even remember just who told him what he'd done.

Still, Tatis said his accomplishment was something he would carry with him as a special moment for the rest of his life, and he said he thinks Ortiz's performance Tuesday night will stay with the one known as Big Papi for a long time, as well it should.

"It's history, it's unbelievable -- it's one of the best moments in my career, and to hit two grand slams in one inning, you don't get to see that every day," Tatis said before adding about Ortiz, "Of course it is. It is for every player. It's good for every player."