Of the many messages from celebrities and athletes sent to congratulate Jordan Spieth on winning the Masters, one tweet was scrutinized more than most.

That tweet came from tennis star Caroline Wozniacki, who was engaged to Rory McIlroy before the pair unexpectedly split up last year.

Shortly after the 21-year-old Spieth wrapped up his dominating performance at Augusta on Sunday, Wozniacki sent out this tweet:

McIlroy, who was gunning for the only major title that he hasn't won, settled for fourth place.

While Wozniacki's tweet seems innocent enough, some people thought she was driving a wedge between golf's hottest young stars. A potential rivalry between Spieth and McIlroy is something that Spieth was asked about after the tournament.

"He's got four majors. That's something I can still only dream about," Spieth told reporters. "I'll never hit it as far as he does, so I'll have to make up that somewhere else."

Here's what people had to say in response to Wozniacki:

This wouldn't be the first time Wozniacki has thrown shade at McIlroy on social media, but she swears that wasn't what she was trying to do.

Wozniacki herself appears to have moved on. She was spotted with Houston Texans star J.J. Watt at the Final Four last weekend and again on Saturday off the coast of Florida.

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