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Could things be as crazy in Cleveland on Aug. 23 as this scene from June 2, 2007, when Game 6 of the NBA Eastern Conference playoffs took place? More than 100,000 people are expected downtown for simultaneous Browns, Indians and Gladiators games, not to mention other nearby events.

(Jeff Glidden, Associated Press)

CLEVELAND, Ohio – Cleveland arguably will be the busiest sports city in America on Saturday. All three pro sports venues downtown will host games simultaneously, and when you throw in a variety of other events going on, we can expect as many as 100,000 people downtown at the same time.

That night at the Q, the Cleveland Gladiators host the Arizona Rattlers in ArenaBowl XXVII at 8. The Indians face the Houston Astros at 7:05 next door at Progressive Field, and the Browns play their first home preseason game at 8 against the St. Louis Rams at FirstEnergy Stadium.

Because of limited overlap between the seasons of the two football leagues, the three teams playing simultaneously at the venues has never happened since the Gladiators relocated to Cleveland in 2008.

Of cities with NFL and MLB teams and an arena, it appears that Cleveland is one of only two with all three venues in play Saturday. (In Denver, the Broncos host the Houston Texans in a preseason game, the Rockies face the Texas Rangers, and a multi-artist rhythm and blues fest is at Pepsi Arena.)

Last year, 56,943 fans watched the Browns defeat the Rams, 27-19, in Cleveland's first home preseason game. With the mania surrounding Johnny Manziel, it's not unreasonable to expect at least that many this year.

The Indians are averaging 18,659 fans per game this season. But promotions at Progressive Field on Aug, 23 include the fan-favorite fireworks, as well as a Terry Francona jersey giveaway, so the team could draw at least 20,000.

The Gladiators averaged 10,609 fans per game in the regular season but have been exceeding that in postseason. They topped 12,000 for their first playoff win Aug. 2, then drew more than 14,000 on Aug. 10. Now comes the championship, which looks like it will sell out.

Just because the Cavs aren't in action doesn't mean they won't be on the minds of fans downtown. The date – Aug. 23 – marks the first day a proposed Andrew Wiggins-Kevin Love trade with Minnesota could happen.

The perfect storm of downtown visitors doesn't stop at sports.

Take into consideration traffic through Horseshoe Casino. Friday and Saturday are the biggest nights of the week, depending on promotions, said Shannon Mortland, public relations manager for the casino and Thistledown.

Mortland said typical attendance for those nights is in the "high teens, 15, 17 thousand." And on Aug. 23, two promotions are open for all players, a Monopoly Community Chest chance to win $5,000 and Roulette Mania, where guests are chosen randomly for free spins.

Playhouse Square is holding Cinema on the Square: "Singing in the Rain" at 8 p.m. at Connor Palace, while the comedic curtain goes up for "Dawg Pounded" at 8 p.m. at Kennedy's Theatre.

A few blocks away, Welshly Arms, The Moxies and Thaddeus Anna Greene will play House of Blues on Euclid Avenue. Doors open at 7 p.m.; the show is at 8. Austin Walkin Cane takes the stage at 9 p.m.

The Flats will draw a few music lovers, as well. At Jacobs Pavilion at Nautica, the party gets started at 4 p.m. with the 93.1 WZAK Presents Stone Soul Picnic 2014. The concert features Bell Biv DeVoe, Naughty by Nature, Avant and other acts. At Music Box Supper Club on Main Avenue, dining begins at 6 p.m. Polyphonic Spree takes the stage at 8 p.m.

Among fundraisers being held is the YMCA of Greater Cleveland Black-tie Gala, which starts at 6 p.m. at the Westin Downtown Cleveland Hotel on Lakeside Avenue. Organizers expect 400 people to attend the event, which marks 160 years for the YMCA of Greater Cleveland.

Moral of the story? Consider RTA. Want dinner reservations downtown Saturday? Make them now.