Hamilton and Rosberg feeling the pressure, says Wolff

By Alan Baldwin AUSTIN, Texas (Reuters) - Formula One title rivals Lewis Hamilton and Nico Rosberg are under huge pressure as they enter the final straight, however much they try to hide it, Mercedes team boss Toto Wolff said on Friday. "I think that generally, all of us, we underestimate the pressure that is on these guys," Wolff told reporters at the U.S. Grand Prix. "It's a couple of races towards the end of the season, there is all to win and all to lose," added the Austrian in response to a