Thursday, they did exactly that -- with scheduled split-squad games against the Kansas City Royals and Oakland Athletics.
The game against the Royals featured Felix Hernandez' first start of spring training, and two players accounting for 11 of the M's 12 runs in their 12-2 victory.
On the mound, Felix gave up a run on two hits in two innings while striking out two. Rotation partner Hisashi Iwakuma followed with three sparkling innings where he just gave up the one hit.
As for the offense, it was the Casper Wells and Stefan Romero show. Romero, a second base prospect, had nearly an entire spring training's worth of offense in one game, going 4-for-5 with two home runs and a double, driving in 7 runs. Wells, fighting for a spot on the Opening Day roster, continued his hot spring with a double and home run with 4 RBIs. Justin Smoak had the only other RBI.
The other half of the team didn't fare as well against the A's.
Chris Young made his debut in left field, Jed Lowrie hit a two-run homer, and the Oakland Athletics won 7-3.
Tommy Milone pitched three scoreless innings for the A's, who have won four of their last five.
Robert Andino hit a home run for the Mariners, leaving Dustin Ackley and the Mariner Moose as about the only members of the team yet to homer. Kendrys Morales added two hits.
Mariners starter Brandon Maurer allowed a run on four hits in three innings.
Milone allowed three hits, walked one and struck out three.
The Associated Press contributed to this report