Admittedly, Jackson Merrill doesn’t like sitting still. That makes him especially difficult to watch Padres games with, as was his girlfriend’s lot in life the last week while he was recovering from his concussion while his teammates played up the 5 freeway at Dodger Stadium.

Padres star Jackson Merrill returned to the lineup Sunday. Merrill suffered a head injury in a game against Arizona earlier in June.

Jackson Merrill is back. The Padres activated their All-Star center fielder ahead of Sunday’s series finale against the Royals at Petco Park -- and in a bit of a surprise, he returned to the lineup batting second for only the second time in his career.