SEATTLE — At 2 meters, 19-year-old Oleg Korneyev stands out on the mound, especially when his pitches clock in at 146 kilometers per hour. This may be business as usual for most minor league signees. But in Moscow's tiny baseball world, Korneyev has suddenly become a very big deal. If all goes well, he may become the first Russian to make it to the major leagues. Korneyev, a lanky, right-handed pitcher from the Russian national team, signed a contract with the Seattle Mariners on May 20. He is expected to report to their rookie team in Peoria, Arizona, next month. So what if he's starting at the bottom? No one in Moscow seems to care. Especially not Korneyev. ""I'm really happy,"" Korneyev said in a telephone interview from his apartment in Moscow. ""I had given up all hope. An agent came to see me last year, but he never called me back again. I thought my chances at the big time were all over."" Ken Madeja, a Mariners scout, saw a different future for the impressive teenager.