From left, Sprint's Dan Hesse, Verizon's Dan Mead and AT&T's Ralph De La Vega

Set your alarms, folks. We're going to get a second dose of keynote awesomeness on Tuesday when the CEOs of Sprint, Verizon and AT&T all take the stage together for the opening keynote at CTIA in San Diego.

Think back to March, at the spring show. Just days before these joined CNBC's Jim Cramer for a pretty frank discussion, AT&T announced its plans to purchase T-Mobile, and the gloves came off. CTIA's dubbed this one "Return of the Titans," and it should be interesting, to say the least, when they're back for Round 2 in San Diego next Tuesday. And, as always, we'll be there. Stay tuned.

Source: CTIA