Mariners outfield prospect Alex Jackson is having a rough season in the minors. He began the year at high Class A Clinton before being demoted to low Class A Everett after batting just .157 in 28 games with Clinton.

Before joining the roster at Everett, Jackson spent some time in extended spring training. However, his numbers since he began play with Everett haven't been overwhelming. He is batting .259 with a .355 on-base percentage, .444 slugging percentage and .799 OPS in 23 games.

For the season, he has a .201/.290/.312/.602 slash line. He also has one triple, two home runs, 13 doubles, 24 RBI, 26 runs, two stolen bases, 14 walks and 66 strikeouts in 51 games.

The 2014 first-round pick (sixth overall) entered the season as a top-30 prospect, according to Baseball America (No. 20) and (No. 28).