OAKLAND Bo Jackson Jersey , Calif. (AP) — Derek Carr had appeared to pass Philip Rivers in the pecking order of AFC West quarterbacks two years ago. He put together a season worthy of MVP consideration while Rivers led the NFL in interceptions on the way to a last-place finish.Carr looked like one of the NFL's up-and-coming stars, while Rivers seemed to be on the downside of a career that started in 2004.The script has flipped heading into Sunday's meeting between Rivers' Los Angeles Chargers (6-2) and Carr's Oakland Raiders (1-7). Rivers is playing as well as he has at any point in his 15-year career, while Carr is struggling to find his way in coach Jon Gruden's offense. "Obviously quarterbacks get way too much credit and way too much blame already, but I think we don't give enough credit to guys who have played that long," Carr said. "I'll say it this way, the hardest part mentally going through a season is the days leading up to the game. Sunday is fun, man. You cut it loose and you give it everything you have. Having to recover, ice tub, wake up early to get treatment, the lift, to lift heavy when everything hurts, that's when those guys don't get enough credit."Here I am at five years, I'm fine. I'm good. I'll keep doing this and I'm good. But, those guys that are in their 15th, 20th season, we don't give them enough credit to mentally be that strong. It's awesome."Rivers has career highs in yards per attempt (9.1) and passer rating (116.5), and is on pace for a career-high 38 touchdown passes while leading the Chargers to five straight wins.The Chargers have strengthened their offensive line, have a potent running threat in Melvin Gordon, have plenty of outside targets with Keenan Allen, Tyrell Williams and Mike Williams, and a strong defense.That has all taken pressure off Rivers to carry too much of the load."These last almost 20 games or so, we've had good balance," Rivers said. "Leaning on one another offensively and defensively taking care of the ball — all of those things are important. So we've done a nice job of it so far."Here are some other things to watch:GORDON'S RUNMelvin Gordon has rushed for 407 yards and scored five touchdowns in his last four games. He also has three 100-yard games in three of his past four, the first time that has happened in his career. The only game when Gordon did not go over the century mark was Week 5 against the Raiders; he had just 58 yards on 19 carries. The Raiders are last in the league in rushing defense, but Gordon knows he has a tough test ahead."They played me pretty tough last time we went up against them. It is never easy since they are a rival. As a group the offensive line is hitting on all cylinders. We hope to keep getting stronger."PRESSURE POINTThe Raiders have struggled to generate any sort of pass pressure all season after trading away Khalil Mack. Oakland ranks last in the NFL with seven sacks and last with 35 QB pressures https://www.raiderslockerroom.com/authentic-antonio-brown-jersey , according to SportRadar, 28 fewer pressures than the next-lowest team. Fixing that will only get harder after the team released top pass rusher Bruce Irvin last week. That puts more pressure on a trio of rookies — P.J. Hall, Arden Key and Maurice Hurst — that has three sacks this season."We put a lot on their plate and that's because they're the future of this team," teammate Frostee Rucker said. "They have to come along and play."KINGS OF PICKSThe Chargers have seven interceptions during their five-game winning streak and have 189 yards in returns, which leads the league. Second-year cornerback Desmond King has three of the interceptions and returned one 42 yards for a touchdown last week at Seattle to put the Chargers up by two scores.MISSING WIDEOUTSOakland has struggled to get any production from wideouts in recent weeks. Since the start of Week 5, Oakland ranks last in the NFL with 37 catches and 428 yards receiving from wide receivers. Amari Cooper had one catch for 10 yards in two games in that span before being traded to Dallas. Seth Roberts leads Oakland's pass catchers with 12 receptions over those four games, while Martavis Bryant has the most yards with 138.NEW KICKER (AGAIN)The Chargers have become the Bermuda Triangle for placekickers. Michael Badgley is the team's sixth since the start of last season and moved into the role fulltime this week after Caleb Sturgis was released on Monday. Badgley made all three of his field goals and seven extra points in the two games he kicked when Sturgis had a quadriceps injury. When Blake Bortles was cut by the Jaguars and picked up by the Rams, he became the 13th quarterback from the 2014 NFL draft to leave the team that drafted him. Now only Derek Carr remains.Bortles was first quarterback selected and the third overall pick in 2014, and he lasted five seasons in Jacksonville. His was not a good career, but it was pretty good by the standards of the 2014 quarterback class.Other than Carr, there’s only one quarterback from that class who’s projected to be a starter this season: Jimmy Garoppolo, who was chosen in the second round by the Patriots and traded to the 49ers, where he’s currently atop the depth chart, as long as his surgically repaired knee holds up.Overall, that draft is a major disappointment at the quarterback position. While Carr is the only one still with the team that drafted him, four are currently plying their trade in the Alliance of American Football: First-round pick Johnny Manziel, fifth-round pick Aaron Murray, sixth-round pick Zach Mettenberger and sixth-round pick Garrett Gilbert.Other than Carr, Garoppolo and Bortles, first-round pick Teddy Bridgewater is the only quarterback from the 2014 draft who’s still in the NFL. The rest — Logan Thomas, Tom Savage, David Fales, Keith Wenning and Tajh Boyd — are currently not on NFL rosters. It wasn’t a good year for quarterbacks.