Rosario went 3-for-5 with two home runs, three RBI and three runs scored in Saturday's win over the Marlins. He doubled his home run total on the season in the span of two innings, going yard in the third then again in the fourth. Ben Paulsen had started the previous four games at first base, and is 18-for-56 with four homers in 19 games with Colorado, but perhaps this performance will help Rosario earn a slightly larger share of the playing time until Justin Morneau (concussion) returns to action.

Rosario is out of the lineup Wednesday against the Reds, MLB.com's Thomas Harding reports. Rosario will sit for the fourth time in five games, as manager Walt Weiss has shown a preference to use Ben Paulsen at first base of late. Due to his struggles against right-handed pitching, Rosario may continue to find himself on the low end of the timeshare until Justin Morneau (concussion) returns from the DL.

Rosario is out of the lineup Sunday against the Giants. Manager Walt Weiss elected to go with the red-hot Ben Paulsen for the Sunday start at first base, giving the Rockies an extra lefty bat to counter Giants right-hander Tim Hudson. While Rosario does his best work against southpaws, he'll continue to find himself in the lineup most nights regardless of the matchup until Justin Morneau (concussion) returns to action.

Rosario went 3-for-5 with a double, RBI, and a run scored in Friday's 11-8 loss to the Giants. Rosario has yet to cool down since being recalled from Triple-A Albuquerque on May 8 and replacing the concussed Justin Morneau as the Rockies' everyday first baseman. He's batting 15-for-47 (.319) in May, chipping in a homer, six RBI, and seven runs. His time behind the plate last season likely makes him catcher-eligible in most formats, and he'll be one of the better fantasy options at that position until Morneau comes back from the DL.

Rosario is out of the lineup Thursday. Rosario has been seeing the starts at first base with Justin Morneau (concussion) out, but he will start the game on the bench with righty Jerome Williams on the mound for the Phillies. Ben Paulsen will get the start at first base and hit fifth.

Rosario notched a two-run triple in Tuesday's win over the Phillies. Rosario has been able to capitalize on the at-bats made available to him following Justin Morneau's placement on the 7-day concussion DL. He's started the last nine games at first base, going 10-for-37 (.270) with a homer, five RBI, and even a stolen base. The Rockies still have six games remaining on their homestand, so at least on a short-term basis, Rosario looks like a worthy roster addition in most formats.

Rosario notched his second homer of the season and drove in two runs in Thursday's 5-4 victory over the Dodgers. Rosario validated his reputation as a lefty killer, as his second-inning solo shot represented most of the damage the Rockies could muster off of opposing starter Brett Anderson. Though Justin Morneau was bypassed for Thursday's start after leaving a night earlier with a spell of dizziness, he's generally expected to be ready to return to the lineup at some point during the series with the Dodgers, which would likely relegate Rosario to a bench role. However, with southpaw Clayton Kershaw toeing the rubber Friday for the Dodgers, expect Rosario to find himself back at first base again for one more day.

Rosario will get the start at DH Tuesday against the Angels. This is a rare two-game stretch in the schedule where Rosario's bat can get in the lineup without hurting the Rockies' defense. Colorado will be back in a National League park Thursday and won't visit an American League team again until mid-June.

Rosario started at first base on Sunday and went 2-for-3 with a walk, a run scored and an RBI against the Dogers. It was Rosario's first appearance since being recalled from Triple-A Albuquerque on Friday as he spelled Justin Morneau with left-hander Clayton Kershaw on the mound. Rosario will likely see limited playing time with Morneau at first and catchers Nick Hundley and Michael McKenry in the fold.

Rosario was recalled from Triple-A Albuquerque on Friday, Nick Groke of The Denver Post reports. It's still not clear where Rosario fits in, but he'll at least provide the Rockies with a powerful bat off the bench, and he's a nice alternative to Justin Morneau against left-handed pitching. With Colorado facing Dodgers southpaw Brett Anderson on Friday, it seems likely Rosario will start over Morneau at first base.