Luther Burden did not mince words about the expectations he has for himself as a player. The Missouri wide receiver is confident he can be the best in the country. It’s hard to argue too, based on his previous production and where he projects as an NFL wide receiver. However, you can’t put the cart before the horse. Burden acknowledged he still has more to prove as he enters the 2024 season. “I look at myself as a player, I feel like there’s still work to do,” Burden said at SEC Media Days. “I’ve still got a lot to prove once again. I want to show them I’m the best in the country. So I’m going…