Who are the MVP candidates after a quarter of the way through the NFL regular season? Check out our list here.So we’re a quarter of the way through the 2013 season, and looking back we can get a sense as to who is on their way to succeeding 2012 NFL MVP Adrian Peterson. Our 2013 league MVP series will list the top five candidates for the award, so without further ado, let’s get started. - 5. Justin Houston, Outside Linebacker, Kansas City Chiefs Surprised to see him here? Well you shouldn’t be. Justin Houston leads the league in sacks with 7.5 and has been a huge part of the success of the Chiefs this season in their impressive 4-0 start. A very underrated defensive player but one who should now start getting the recognition he deserves. In a Week 3 win over the Philadelphia Eagles he registered 4.5 sacks, seven tackles, three passes defended and a forced fumble. Surely one of the best defensive performances we’ve seen in a long time. He’s also on track to break the all-time single season sack record, and it’ll be interesting to see how he progresses throughout the season. 4. LeSean McCoy, Running Back, Philadelphia Eagles If anyone on the Eagles has been a beneficiary of Chip Kelly’s offense in Philadelphia, then it’s McCoy. He leads the league in rushing with 468 yards -- averaging six yards a pop -- and although he only has seven catches, those seven have gone for 140 yards with a whopping 20 yards per catch. He has proven to be the perfect weapon in the Eagles’ offense and is on course for over 2,000 yards from scrimmage. However if he is to win the MVP award, he’ll need an Adrian Peterson-like season and lead the Eagles into the playoffs. Question is, can the Eagles get there? 3. Tom Brady, Quarterback, New England Patriots First of all, what an offseason for Tom Brady. He lost his most reliable target in Wes Welker, another top target in Brandon Lloyd then of course losing tight end Aaron Hernandez after he was arrested on a murder charge. Plus he has been without tight end Rob Gronkowski due to injury to start the season and new wide receiver Danny Amendola has spent most of the season on the sidelines, yet Tom Brady has led the Patriots to their first 4-0 start since their record-breaking 2007 season. He’s been throwing to rookies and unknowns, and continues to prove that he doesn’t need superstar weapons around him to be a success. He’ll easily move up this list if he improves on his completion percentage of 58.4 and rating of 87.4. 2. Drew Brees, Quarterback, New Orleans Saints It doesn’t seem to matter who is on the sidelines coaching for the Saints, Drew Brees will continue to add to his Hall of Fame credentials. Statistically there has been only one quarterback who has been better than Drew Brees to start this season, and don’t be surprised to see Brees throw for 5,000 yards once again when this season is done. Brees is current second in the league in yards, yards-per-game and has thrown for 300 yards in nine straight games dating back to last season, tying his own NFL record. The Saints are now 4-0 and he is the main reason for this, making him easily a top two candidate. 1. Peyton Manning, Quarterback, Denver Broncos Was there really any doubt for the No. 1 spot? Peyton Manning has been nothing short of sensational to start this season. He leads the league in just about every passing category, yet the most impressive statistic is his 16 touchdown passes and zero interceptions – yep, not one. We all know how great Manning is but did anyone really expect these kind of numbers? The Denver Broncos are 4-0 and there is talk of an undefeated season being a possibility. Why is this? Because of Peyton Manning. If MVP voting happened today I have no doubt Peyton Manning would win unanimously. The scary thing for the rest of the NFL is that Manning shows absolutely no signs of slowing down. Agree or disagree? Did I miss anyone off this list? Let me know in the comments below and check back in four week's time for an updated list!