Nico Rosberg says the intensity of his competition with Mercedes teammate Lewis Hamilton makes it difficult for them to be friends.Following collisions at the Spanish and Austrian Grands Prix this season, the relationship between Rosberg and Hamilton has come under intense scrutiny. The pair have known each other since they raced go-karts together in their teens, but Rosberg says their relationship has become increasingly intense since they started going head-to-head for the world championship.I have huge respect for him but, well, were not best friends at the moment, Rosberg told the Guardian.Were just both so competitive and that makes it difficult to be friends because the competition is so extreme.It was the same back then [when we were karting]. How many pizzas could we eat? Who could run fastest from the lift to the hotel room? It would be competition all the way but there was not the surrounding influence with a team, the media and money. That makes it difficult now.Rosberg currently leads the championship by one point after seeing a 43-point lead eroded over the last five races. But Rosberg does not believe 2016 will be the last big chance in his career to win the title.I dont think of it that way. Its just a great opportunity, he said. Of course it helps for motivation when youre fighting for wins. If we were 12th and 13th its not the same. Fighting for the title is incredibly intensive. The learning curve is steep initially.Ive learned a lot and made massive progress. The actual driving doesnt change much but its such a difficult situation because youre racing together and, at the same time, against each other. Thats a unique challenge. Kenny Golladay Youth Jersey . Vancouver Whitecaps and Toronto FC failed to make the postseason while Montreal Impact fell at the first hurdle losing heavily to Houston Dynamo in the Eastern Conference Knockout Round. T.J. Hockenson Womens Jersey . -- Gus Malzahn finally had his day in Fayetteville. http://www.authenticnfllionslockroom.com/Youth-Will-Harris-Elite-Jersey/ . -- Matt Ryan needed one of the best games of his career to lead the Falcons and their depleted offence out of their three-game losing streak last week. Kenny Golladay Jersey . 10 Texas A&Ms offence dominated as usual against SMU. Will Harris Youth Jersey . It was just business as usual for the Thunder at home. Durant scored 32 points and the Thunder beat the Bulls 107-95 on Thursday night for their eighth straight win. I cant think of a track on the NASCAR schedule that changes more from one race to another than Daytona International Speedway. It is front and center for competitors preparing to do battle in the summer classic, and while Daytona 500 winner Denny Hamlin and his Joe Gibbs Racing teammates will certainly be among the favorites Saturday night, not everything they utilized during this years Daytona 500 applies to this next race ...Here is why.The inability to maintain full throttle: The Daytona 500 is, and always will be, the most prestigious race on the schedule. Teams spend a large portion of the offseason focused on it, then begin the year with a week of track time constantly searching for speed on a track fresh and clean.As the week goes along, the track gets slick, and by race day in February, many drivers wish they had obtained more grip versus whittling away drag, which leads to straight-line speed.Its a comfort versus speed thing, and evidence of the value of a comfortable car was watching the solo spins of pole sitter Chase Elliott and restrictor-plate master Dale Earnhardt Jr. in the 500.The key to winning the Daytona 500 is a combination of speed and handling, but the key to winning Saturdays Coke Zero 400 is handling ... and handling!Keeping your right foot to the floorboard will be difficult for drivers Saturday because the track in the summer months (even at night) can be difficult to navigate.The fastest, best drafting car is virtually useless if its driver has to lift off the accelerator through the turns and will be passed by all those that qualified behind it as a result.Dark horse: With a restrictor-plate race comes the posssibility of a surprise or upset.ddddddddddddAt the top of my list is pole sitter?Greg Biffle.Greg is much like last weeks winner Tony Stewart in that he has had a brilliant career. He is in the late innings of it, but I believe there exists the potential for at least another win before he chooses to hang up his helmet.Greg may not get the attention of Stewart, or last years retiree Jeff Gordon, but he probably should get more than he has.After all, like Gordon, he has spent his entire career with one car owner. That is amazing in itself.On top of that, Greg is a former champ in the truck and Xfinity series, came within a whisker of a cup title and is a previous winner of this event.Dont underestimate the potential of Greg Biffle to find Victory Lane again. Owner Jack Roush was wise to discover him early, wise to retain him late.The bottom lineDenny Hamlin, Matt Kenseth and Martin Truex Jr. will be strong contenders Saturday just as they were in February. But charting your course to Victory Lane will require driver comfort versus driver speed, as the historic Superspeedway wont be as forgiving as it was in February.Evidenced by Earnhardts and Elliotts solo spins in the Great American Race, nothing at this track can be assumed -- or taken for granted.A near-perfect race behind the wheel, a near-perfect day on pit road and a spotter performing as your conscience will all aid in your chance of victory.From a simplistic standpoint, your ability to keep the right pedal planted to the floorboard probably matters most. ' ' '