Serena Williams’ husband has caused a stir at the US Open with what appears to be a thinly-veiled swipe at Maria Sharapova.

Alexis Ohanian was in attendance on Monday as Serena blitzed Sharapova 6-1, 6-1 in just 59 minutes.

It was Serena’s 19th-straight win over her long-time rival, and would have been particularly sweet considering their history.

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Speaking of history, Ohanian appeared to reference Sharapova’s with the T-shirt he was wearing.

Ohanian wore a shirt with ‘D.A.R.E’ on the front, short for Drug Abuse Resistance Education.

Many took it as a dig at Sharapova, who was infamously banned from tennis in 2016 after testing positive to a banned substance.

Some found it funny, however a number of fans thought it was disrespectful.

Flip the Pages to see all the Tweets About his Shirt: