Rick Porcello (4-14) gave up four runs in seven innings as the Boston Red Sox fell 4-2 to the Kansas City Royals at Fenway Park on Friday night.
Eduardo Nunez reached base three times, including two hits in his first game in a Red Sox uniform.
The Royals have won nine straight games. The Red Sox dropped out of first place in the American League East for the first time in over a month.
