Guyton caught his lone target for 39 yards in Sunday's 15-10 preseason loss to the Chargers.
Guyton ended up leading the Chargers in receiving yards despite making just one catch, as he was the only receiver able to break through the 49ers' tight coverage in this exhibition. The third-year wideout currently is battling for the vacant No. 3 WR job, so Sunday's big play should help his bid. Expect things to remain competitive between Guyton, Tyron Johnson and rookie Josh Palmer heading into the Chargers' third preseason tilt against the Seahawks on Saturday.