Last year, multiple teams -- including Washington State head coach Mike Leach -- called out the Arizona State Sun Devils football team for allegedly stealing signs from their opponents.

On Monday, as his Cougars prepare to face ASU in Tempe this weekend, Leach said the Sun Devils have continued this "unsavory" (albeit legal) practice, adding the Sun Devils have "a whole command center" invested in doing so.

"I think they still steal signs, and we'll have to keep an eye on that," Leach said. "This is a very unsavory practice they have, so we'll have to do what we can to defend against it."

Leach added ASU uses cameras and microphones in an effort to gain an upper hand on the competition.

On Tuesday, ASU coach Todd Graham responded to Leach's comments by defending the integrity of the Sun Devil football program.

"Make this perfectly clear: We do everything exactly by the rules, period," he said. "Obviously we take a great deal of pride in the integrity that our program has.

"I'll just leave it at that. I'm not going to get involved in things like that that are ridiculous. But when you speak about our my integrity and our integrity as a program ... We take great pride in how we do things here. (We're) very open and very honest about how we do things, so I do want to say that."

ESPN's Kevin Gemmell recalled Leach making tongue-in-cheek comments about ASU's alleged sign stealing after Washington State's win over the Sun Devils in Pullman last season.

"The first half we stole a bunch of their signals and that helped us a bunch in the second half," Leach said after the game.

Graham and the Sun Devils will face Leach and the Cougars at Sun Devil Stadium at 7 p.m. Saturday. The game will be televised on Pac-12 Networks.