MINNEAPOLIS -- Outfielder Alex Jackson, the Mariners' No. 1 ranked prospect on MLBPipeline.com, has been sidelined for one or two weeks with a left hand injury.

The 19-year-old has put up a .259/.355/.444 line with two homers and 11 RBIs in 23 games for Class A Short Everett. He was transferred to Class A Clinton on Friday and placed on the disabled list to create room on Everett's roster, but is expected to be returned to Everett's roster as soon as he's ready to play again.

Everett's roster is limited to 35 players, and the Mariners needed temporary space there after acquiring left-handed pitchers Nick Wells and Jake Brentz from Toronto in the Mark Lowe trade on Friday and assigning them to the AquaSox.

Jackson was the sixth overall pick in the 2014 Draft out of Rancho Bernardo High School in Escondido, Calif., and he hit .280 in 23 games last year for Seattle's Rookie League team in Arizona.