Prospect watch

Trevor Miller

Pitcher, Class AA Jackson Generals

Selected in the 40th round of the 2011 major-league draft out of San Joaquin Delta College (Stockton, Calif.).

After a shaky start to the season, the big right-hander has put together a string of solid outings for Jackson. Miller is 4-1 with a 2.89 ERA (nine earned runs, 28 innings pitched) over his last five games, which includes four starts (since May 7) and an extended relief appearance. During that stretch, he has limited opponents to a .200 average (20 for 100), while walking 12 and striking out 18. In his last outing, Miller tossed six innings, allowing just one unearned run on two hits. He walked four and struck out three. For the season, Miller has a 4-5 record with a 4.08 ERA. He has struck out 40 in 571/3 innings pitched with 25 walks. Right-handers are hitting just .159 (18 for 113) against him.

Ex-Mariner of the week

Wladimir Balentien

Outfielder, Yakult Swallows

The former slugging prospect of the Mariners has become the season home-run king of Japan. A year ago, he hit 60 home runs to break the Nippon Professional League record of 55 in one season, which was held by slugging legend Sadaharu Oh. He hit 31 home runs in each of the previous two seasons before the record-setting year. This season, he has hit 16 homers in 36 games. Balentien is hitting .301 (53 for 219) with a 1.025 on-base plus slugging percentage. He’s a big star in Japan. Balentien played 130 MLB games for the Mariners in parts of three seasons, hitting .209 with 12 homers and 41 RBI. He struck out 122 times in 434 plate appearances.