Mets starter Kodai Senga was removed in the sixth inning of Thursday’s game against the Nationals at Citi Field with an apparent right hamstring injury. Senga came into that start as the NL leader in earned run average at 1.59, with a 6-3 record and was pitching a shutout.

New York Mets starting pitcher Kodai Senga exited Thursday's game against the Washington Nationals in the bottom of the sixth inning after injuring himself while covering first base on a groundout.

It was a bittersweet, beautiful afternoon in Queens today, as the Mets rolled to their sixth straight victory, taking down the Nationals 4-3. However, the seemingly easy victory almost came apart in the ninth and the Mets may have lost their ace to injury for an undetermined period of time.

Mets starting pitcher Kodai Senga exited Thursday's game against the visiting Nationals with an apparent right leg injury.

Jeff McNeil doubled home the winning run in the 10th inning and the New York Mets rallied past the Washington Nationals 5-4.

Senga allowed just two base runners in the first 5 1/3 innings before racing to cover first on CJ Abrams’ grounder to Pete Alonso. Senga made a leaping grab of Alonso’s high throw and touched the bag with his right foot on his way down.

Senga has looked outright dominant for the Mets for much of the season, developing into a top-of-the-line starter of a rotation that was expected to be a weak spot for the Mets. Coming into Thursday, the Mets rank No. 1 in team ERA while also being top five in batting average allowed.

The Washington Nationals continue their recent struggles and are now 2-7 in their last nine games. If they lose today, that will be a clean sweep by the New York Mets, which is the Nationals second sweep of the season.