Asked what he would tell his squad about how to beat England, their first opponents at the World Cup in South Africa in June, Bradley said they should not let Rooney dominate the game.
"He's been in incredible form. He's been slowed down a little bit of late with injuries, but there's the starting point of things there," Bradley told a small group of reporters.
"Our feeling is the group we're in is a strong group but one where we have a real fair chance to advance," he said.
Bradley said injuries had clouded prospects for his 23-man squad, and that between 16 and 18 players had probably secured places ahead of next month's training camp.
"In a perfect world we would pick our 23 and that's who would come into camp. Now we're probably thinking more along the lines of bringing 26 to 28 guys."
"Edson has scored some incredible goals, a variety of goals," Bradley said. "A lot of maturing has taken place. He's doing a lot of little things that make a difference."
On Gomez, Bradley said: "His first year at MLS, everything that he touched went in the net. His pure ability to strike a ball was pretty obvious and that's kind of come back again."
