The Broncos kicked off their 2013 season at home against the Baltimore Ravens in the NFL kickoff game, in a highly publicized rematch of their 2012 Divisional playoff game. The Ravens grabbed the early lead in the first quarter, with quarterback Joe Flacco tossing a 2-yard touchdown pass to fullback Vonta Leach. Following a Flacco interception, the Broncos responded early in the second quarter, with quarterback Peyton Manning throwing a 24-yard touchdown pass to tight end Julius Thomas. After Broncos' wide receiver Wes Welker muffed a punt return near the goal line, the Ravens grabbed the lead, with running back Ray Rice rushing for a 1-yard touchdown, but the Broncos responded, with Manning connecting with Julius Thomas on another touchdown pass &#8212; from 23 yards out. The Ravens grabbed a 17-14 lead just before halftime, with placekicker Justin Tucker nailing a 25-yard field goal. However, the Broncos would reel off 28 unanswered points, with Manning throwing four more touchdown passes &#8212; a 28-yarder to wide receiver Andre Caldwell, two to Welker from 5 and 2 yards out, followed in the fourth quarter by a 26-yarder to wide receiver Demaryius Thomas. The second score came after Broncos' safety David Bruton blocked a Sam Koch punt. The Ravens later scored 10 unanswered points, with Flacco throwing a 13-yard touchdown to wide receiver Marlon Brown, followed by a 30-yard field goal from Tucker to pull to within 42-27 with 5:29 remaining in the fourth quarter. However, the Broncos subsequently put the game out of reach, after Manning threw his seventh touchdown pass of the game &#8212; a 78-yarder to Demaryius Thomas. The start of the game was delayed 33 minutes due to lightning in the Denver area.. How many yards was the longest pass of the game by Manning?