This marks the second 49ers wide receiver who is sidelined as Christian Kirk suffered a calf injury over the weekend. 3 49ers wide receiver Ricky Pearsall is dealing with swelling in his knee this summer. Getty ImagesAll “options” for the lingering effects of Pearsall’s injury are being explored, with the 49ers expressing “concern,” per ESPN’s Nick Wagoner. During his first training camp with the 49ers, Pearsall participated in only six of 19 practices because of a shoulder injury. Last season, Pearsall notably missed more than half the season as the 49ers endured another campaign marred by injuries.