Scouting Taijuan Walker, Nolan Arenado 

March, 5, 2013

Some observations from Monday's messy game between the Colorado Rockies and Seattle Mariners in Peoria, Ariz.

• Seattle's top prospect, right-hander Taijuan Walker, threw two innings in support of Generic Starter, one good and one less so. He threw nothing but fastballs in his first inning of work, and tried to continue that in his second inning, leaving a 93 mph fastball about gut-high to Nolan Arenado, who was clearly looking fastball and hit it out to left-center, a clear mistake pitch that was compounded by Walker's predictability.