Koo is in competition with incumbent starter Josh Lambo for the Chargers' starting kicker job, ESPN's Eric D. Williams reports.

EDGE Analysis

Head coach Anthony Lynn said the kicker job is an open competition, which doesn't come as much surprise after Lambo finished 19th in the league in terms of field-goal accuracy as well as 0-for-3 from beyond 50 yards. What's more, Lambo excruciatingly sent three kickoffs out of bounds. In all likelihood, the winner will likely be decided by who fares better in preseason action.