Alvarez is slated to start Saturday's game against the Reds at Nationals Park.
After being called up from Triple-A Rochester on Monday, Alvarez will wind up getting a two-start week. The 27-year-old southpaw delivered a quality start Monday against the Phillies with two earned runs allowed over 6.1 innings, and he's compiled a 3.94 ERA, 1.45 WHIP and 63:31 K:BB over 64 innings through his first 16 appearances (eight starts) with Washington. Alvarez should have a good chance at sticking around in the rotation spot for the rest of the season after the Nationals designated right-hander Zack Littell for assignment earlier in the week.