Given the task definition and input, reply with output. Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

Context: Coming off their special teams woes in 2010, the Chargers allowed a 103-yard opening kickoff return to Percy Harvin to start the season. Kicker Nate Kaeding suffered a season-ending injury on the play, and punter Mike Scifres assumed place kicking responsibilities for the game. The Chargers outscored the Vikings 10-0 in the fourth quarter to come back and win the game, 24-17. Fullback Mike Tolbert scored three touchdowns, and Philip Rivers completed 33 of 48 passes for 335 yards and two touchdowns. He was also intercepted twice. Scifres kicked a 40-yard field goal, the first of his NFL career, and kicked three PATs. With the win, the Chargers started their season out 1-0.
Question: Which player scored the longest touchdown of the game?
percy harvin