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Ketel Marte (back) was scratched from the Diamondbacks’ starting lineup for Saturday’s showdown against the Padres.

Advice: Marte appeared to tweak his back during his final at-bat on Friday night and that seems to be the reason that he was scratched from Saturday’s lineup. The fact that he was in the initial lineup is at least encouraging though, so he should be considered day-to-day until we hear otherwise. Rotoworld 13 minutes ago

MLB.com’s Thomas Harding reports Rockies top prospect Adael Amador has joined the club in St. Louis, but no decision has been made whether to officially recall him for his major-league debut.

Advice: Independent journalist Francys Romero reported earlier Saturday that Amador, who has homered six times over his last nine games for Double-A Hartford, was being called up for his debut. That’s on hold at least for the moment with Harding adding that the Rockies are waiting to determine whether Brendan Rodgers hamstring strain is severe enough to require a trip to the injured list. Amador has joined Colorado’s taxi squad, and it’s still possible he could be officially recalled in the coming days. However, for the moment, it doesn’t sound like his debut is imminent. We’ll have additional updates on the developing situation as it unfolds. Rotoworld 50 minutes ago

Drury (hamstring) has responded well to recent baseball activities and is likely to head out on a rehab assignment during the week of June 10, per MLB.com.

Advice: Drury hasn't played since injuring his left hamstring May 8, but he's recently progressed to running and participating in full baseball activities, including taking groundballs and hitting on the field. The veteran infielder hasn't had any setbacks while taking part in that work and thus appears just about ready to head out on a rehab stint. It's not clear how many minor-league games Drury will play in, but he could be back with the Angels by the end of next week. Rotowire.com Today, 12:20 pm

Independent journalist Francys Romero reports the Rockies are calling up top prospect Adael Amador.

Advice: Amador has been sizzling-hot of late for Double-A Harford, batting .359 with six homers over his last nine games, on the heels of a frosty start to the year. The 21-year-old prodigy possesses excellent bat-to-ball skills, which should lead to high batting averages in Colorado, and is starting to show some additional over-the-fence pop. It’s unclear how long he’ll remain in the majors, but he figures to be worthy of a speculative pickup in deeper mixed leagues. Rotoworld Today, 11:50 am