Pittsburgh committed six turnovers, including a strip-sack fumble ofRoethlisberger late in OT that had the Browns poised to win their first opener since 2004.
Watt capped a brilliant performance by blocking Zane Gonzalez's 43-yard field-goal try with 9 seconds left to preserve the tie for the Steelers, whose drama-filled week around Le'Veon Bell ended with more theatrics.
Roethlisberger completed 23-of-41 passes for 335 yards one touchdown and three interceptions.
-Former Penn State running back Sayquon Barkley carried the ball 18 times for 106 yards in his debut with the New York Giants. But the Steelers, who sacked Taylor seven times, refused to offer any excuses after falling dangerously close to becoming the first team to lose to the Browns in Week 1 since 2004.
"Tying in the National Football League is really weird", left guard Joel Bitonio said. But Ben Roethlisberger threw three interceptions and fumbled twice, and Conner's fumble in the fourth quarter helped the Browns rally.
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The rule even meant the school lost the NAIA Division II postseason basketball tournament . Kaepernick tweeted the video with the caption, "Believe in something".
The Pittsburgh Steelers will host the Kansas City Chiefs next Sunday and the Cleveland Browns will go on the road to face the New Orleans Saints (0-1). He will make the plays that are there but throw it away when they aren't.
Defensive end Myles Garrett was a beast for the Cleveland Browns.
Browns: DE Emmanuel Ogbah left briefly with an ankle injury in the first quarter but returned.
Josh Gordon made just one catch - one mesmerizing, jaw-dropping, game-tying catch.
To be fair, the last time the Steelers played to a tie, Tommy Maddox threw for 473 yards, Plaxico Burress had 253 yards receiving and Amos Zereoue (!) ran for another 123 yards in a 34-34 finish against Michael Vick and the Falcons on November 10, 2002.
Browns undrafted rookie left tackle Desmond Harrison had a long day. He kicked off the two-play drive with a 17-yard blast as the Browns' defense got gashed on the ground by the second-year back out of Pitt. But the Browns punt from their own 26 after Bud Dupree batted a pass intended for Jarvis Landry.