SAN DIEGO — Philip Rivers threw three touchdown passes and the San Diego Chargers defeated the Jacksonville Jaguars 33-14 at Qualcomm Stadium on Sunday.

Wide receiver Eddie Royal caught two of Rivers’ scoring tosses and Nick Novak added four field goals as the Chargers won their third straight contest.

Rivers completed 29 of 39 attempts for 377 yards with no turnovers and had a flashy passer rating over 130 for the second consecutive game.

Jaguars rookie quarterback Blake Bortles made his first NFL start. Bortles, the third overall pick in the 2014 draft, had a touchdown and two interceptions while connecting on 29 of 37 passes for 253 yards. The loss was the seventh consecutive defeat for Jacksonville dating back to 2013 and fourth in a row this season.

San Diego wide receiver Keenan Allen set career highs in receptions (10) and yards (135) as the Chargers remained undefeated at home.

In the third quarter, wide receiver Malcom Floyd beat Demetrius McCray in single coverage to put the Chargers ahead 24-14 on a 24-yard touchdown pass from Rivers.

The Jaguars trailed by 10 with nine minutes left in the third quarter when Brandon Flowers came up with the Chargers’ first pick of the year. The Chargers took over at the Jacksonville 40-yard-line but settled for Novak’s second field goal and a 27-14 lead.

With a minute left in the second quarter, Royal caught his second touchdown pass, and fourth in two games, from 43 yards. That gave the Chargers a 17-14 advantage in a back-and-forth first half.

Bortles, 22, wasn’t blinking in battling Rivers, going 15 of 18 with a touchdown in the first two quarters.

He threw his third NFL touchdown pass to Nic Jacobs from 2 yards for a 14-10 second-quarter edge. One play before connecting with Jacobs, Bortles hit Allen Hurns on a 44-yard pickup.

Minutes earlier, Rivers spotted Royal isolated against Jaguars’ linebacker Geno Hayes. Royal easily slipped past Hayes over middle for a 47-yard score, putting the Chargers ahead 10-7.

The Jaguars took a 7-3 lead early in the second quarter on Toby Gerhart’s 1-yard plunge. It capped a 10-play, 68-yard drive, with completions to Cecil Shorts III (13 yards) and Clay Harbor (22 yards) being the key gains.

For Jacksonville it was the team’s first rushing touchdown since Nov. 24, 2013.

NOTES: Chargers CB Jason Verrett was an inactive with a sore hamstring. … The Chargers don’t have a date for ILB Manti Te’o’s return. He suffered a foot injury in last week’s win over Seattle. … Chargers S Eric Weddle could be facing an NFL fine after receiving an unnecessary roughness penalty on Nic Jacobs’ scoring catch. Weddle knocked Jacobs’ helmet off in the end zone. … Jaguars WR Allen Robinson started in place of rookie Marqise Lee, who is out with a hamstring injury. …WR Chris Shorts III left with a knee injury.