On a good day Lashley has the physical skills to beat Lesnar but who knows if that match will ever take place? No MMA fighter is unbeatable including Brock Lesnar. Lashley signing with TNA seems to make sense especially if Lashley can continue training for his MMA career of which he is taking seriously. If, and that's a big if, Lashley fights Lesnar it's likely 2 years away and Lesnar would be favored.