#15 Bret Hart vs. Owen Hart (WrestleMania X, 1994)
At WrestleMania X in 1994, WWE put on its greatest-ever sibling rivalry and greatest WrestleMania opener, as the realistic-looking tension between real-life Canadian-bred brothers Bret and Owen Hart played out in a fantastic match.
Owen, who played the role of the jealous little brother desperate to get out of Bret's shadow, had been teasing a heel turn since Summerslam '93 and finally turned to the dark side by attacking Bret at the 1994 Royal Rumble when Bret failed to tag his younger brother into the ring in a Tag Team Championship match.
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While Hart was injured in the storyline due to his brother's attack, he nevertheless managed to limp back to the ring for the Royal Rumble match, which he co-won with Lex Luger when both stars were eliminated at once.
While Hart would go on to defeat Yokozuna in a good, but far from classic, WWE Title match later in the night, the real gem was the clash with his brother Owen. Technical and intense in its execution, the siblings stole the show from the beginning, putting on a better quality performance than most main events (including the one from that night) with Owen picking up a huge upset win.