Scherzer gave up a home run to John Mayberry Jr. in his two-inning debut for Washington, and Kila Ka'aihue hit a two-run shot in the seventh to lead the Nationals to a 5-4 victory over the New York Mets on Thursday. Starting the Nationals' spring opener after signing a seven-year, $210 million contract this winter, Scherzer needed just eight pitches in a perfect first. The right-hander called the outing "fun" and said he thought overall that he had a productive start in relation to what he wants to work on this spring. The 41-year-old Bartolo Colon retired the Nationals 1-2-3 in each of his two innings of work, which included a pair of strikeouts. After his strong first inning Scherzer struck out the first batter in the second, before giving up the homer to Mayberry, Jr. For the day he threw 20 of his 29 pitches for strikes, yielding two hits, and striking out two. Werth is working his way back from arthroscopic surgery on Jan.