What are the odds that two relatively undersize quarterbacks who grew up in small Texas towns just 130 miles apart would win Heisman trophies in back-to-back years, become first-round NFL draft picks and ooze so much charisma that they trademarked their nicknames before making their pro debuts?  That’s just part of what Washington Redskins third-year quarterback Robert Griffin III and Cleveland rookie Johnny Manziel have in common.  Griffin and Manziel are also 99 percent of the reason why Monday’s preseason clash between teams that finished at the bottom of their respective divisions last season with abysmal records (Washington, 3-13; Cleveland, 4-12) is such compelling viewing, in full-hype mode for “Monday Night Football.”  Griffin, 24, is expected to play the first quarter. Manziel, 21, is expected to come off the bench behind incumbent starter Brian Hoyer yet get an equal share of snaps with the Browns’ first team.  Comparisons between the Heisman Trophy winners — each, the face of his franchise — are sure to fly fast and furious Monday night. Consider this a jump-start on the tale of the tape to come:  Have a Redskins question? Send an e-mail to mike.jones@washpost.com with the subject line “Mailbag question,” and it might be answered on Tuesday in The Mailbag.  Jay Gruden opens up about learning on the job  Manziel one of a few newcomers battling for starting QB spots  Gruden says Redskins starters will play ‘at least a quarter’ vs. Browns’  Coach feels good about Redskins’ quarterbacks  Griffin brushes off Manziel comparisons  RB Thompson, LB Sharpton ruled out for Monday’s exhibition  DE Bowen agrees to rework his contract  Graphic: A look at the crackdown on illegal contact  Sean Taylor will be featured on NFL Network’s ‘A Football Life’  Jon Gruden’s nickname for his little brother  More NFL: Home page | D.C. Sports Bog | The Early Lead | Fancy Stats | Fantasy  Follow: @MikeJonesWaPo | @lizclarketweet | @JReidPost | @Insider
A tale of the tape of the Redskins' and Browns' quarterbacks heading into Monday's exhibition game between Washington and Cleveland.