Mason Adams, a right-handed pitcher for the Colorado Rockies, is slated to make his major league debut on Tuesday night against the Washington Nationals in the second game of a four-game series.
Ranked as the Rockies’ 20th-best prospect by MLB.com, Adams was acquired from the Chicago White Sox in a trade for Brenton Doyle on August 3.
Since the trade, the 26-year-old has posted a 2.08 ERA over three starts for Triple-A Albuquerque, bringing his overall minor league stats to a 3-4 record with one save and a 3.48 ERA in 17 games across four teams.
Mason Adams’ debut marks the second Adams to join the Rockies roster in two days. Blake Adams was called up from Triple-A on Monday and had a rough major league debut, allowing five runs on five hits in just over one inning.
Adams will oppose a Nationals team that began its 10-game homestand by ending a four-game losing streak with a 13-3 victory on Monday.
Despite the venue change, the Rockies continue their slump, losing seven consecutive games following a six-game home losing streak.
Nationals will start left-handed pitcher Andrew Alvarez, who holds a 2-5 record and 3.60 ERA. Although he lost his last two starts, he only gave up three runs in 10 2/3 innings. In his last eight starts, he’s 0-4 with a 4.19 ERA.
In a recent game against the Rangers and Jacob deGrom, Alvarez pitched five innings, allowing one run in a 2-0 loss. He surrendered four hits and three walks but managed to escape jams multiple times.
Alvarez commented on the jams, saying, “You don’t want to get into them, but you have to maintain composure and trust the defense. I made some key strikeouts to keep the team in the game without allowing momentum.”
Daylen Lile powered the Nationals’ offense in the series opener. The 23-year-old outfielder contributed with a two-run single, a double, and a three-run home run.
Lile expressed his gratitude for contributing, stating, “It means a lot. We can build on this. Take the positives into Tuesday and aim to finish the season strong.”
This season, Lile has hit 16 home runs and driven in 71 runs.
Washington’s Jorbit Vivas tied his career high with three hits on Monday.
After falling behind 2-0, the Nationals scored five runs in the fifth inning, capitalized by two Rockies errors.
Colorado manager Warren Schaeffer emphasized the need for better ball control, saying, “We must take care of the baseball better. That inning got out of control. In the big leagues, we need to play better.”
The Rockies initially led with home runs from Willi Castro and Ezequiel Tovar, but Washington responded with 10 consecutive runs. Tovar strained his left wrist while diving for a ball in the fifth inning and exited in the sixth.
Schaeffer assured that Tovar would be fine, noting, “It was the top of the hand. He rolled it on the dive. He should be all right.”
Tovar went 2-for-2 and has a .333 batting average since August 3, with three doubles, two home runs, five walks, eight runs, and five RBIs. Connor Norby contributed an RBI single and has been on base in all 12 games since his trade from the Marlins.

