The Washington Nationals today recalled left-handed reliever Xavier Cedeno and right-handed starter Blake Treinen from Syracuse of the Triple-A International League, and optioned right-handed pitcher Taylor Hill to Syracuse. Treinen was recalled as the 26th man for the Nationals' scheduled doubleheader with the Chicago Cubs and will start the nightcap. Nationals President of Baseball Operations and General Manager Mike Rizzo made the announcements.

Cedeno returns to the Nationals for his third Major League stint of the season. In his previous two call-ups, Cedeno has tossed 2.1 innings and allowed no runs on two hits. He has not walked a single batter. With Triple-A Syracuse this season the lefty is 3-0 with a 1.56 ERA in 15 appearances (17.1 IP) with one save. Cedeno has held International League batters to a .164 average against.

Treinen rejoins the Nationals to make the fifth start of his Major League career. He will face Cubs right-hander Jeff Samardzija in the second game of Saturday's doubleheader. Treinen is 0-3 in eight Major League games (30.1 IP) but possesses a 2.08 ERA. With Syracuse, Treinen is 4-0 with a 1.80 ERA in eight starts (35.0 IP). He has held Minor League opponents to a .214 batting average against and has a 7.97 K/9 ratio.

Hill made his Major League debut for the Nationals on June 25, tossing 3.1 innings against the Milwaukee Brewers and allowed two earned runs in the Nationals' 9-2 loss. The right-hander also pitched a scoreless inning on June 27 against the Chicago Cubs. In two appearances (4.1 IP), he worked to a 4.15 ERA.