American sprinter Noah Lyles is facing backlash over his reaction to his wife's wedding dress - which was shared on TikTok.

Lyles and his wife, Jamaican sprinter Junelle Bromfield, released a behind-the-scenes look at their wedding on social media.

Among the clips and pics included the moment when Lyles saw Bromfield in her white wedding gown for the first time.

What should have been a sweet look at an intimate moment before the exchange of vows turned into a moment of criticism over Lyle's 'horrible' reaction.

After turning around, Lyles found Bromfield in an ornate and flowing princess dress as she stood there all glammed up for the ceremony.

Lyles reacted with a stunned 'Oh wow, okay' before adding, 'I didn't think you'd go with a princess dress... yeah, this is good.'

Fans were quick to bash Lyles in the comment section for his reaction that was deemed too low-key for the occasion: 'I'm genuinely mad over this sorry,' wrote one upset commenter on TikTok.

Another said, 'See personally I would cancel errything [sic] right then and there but that's me.'

'He didn't give her not one compliment,' one user noted. Another agreed, saying, 'He didn't even compliment her ONCE.'

'The reaction was horrible,' said another commenter. One note asked, 'Why is he not emotional and complimenting you.' 

While there was plenty of negativity thrown in Lyles' direction, Bromfield defended her husband's reaction.

She said that the day was already emotionally taxing after some family and friends couldn't attend.

'That reaction that I got from Noah is exactly what I needed because he tried to make me happy,' Bromfield explained.

'He tried to make me talk because if he did not do that, I would probably be shut off that whole wedding because I was processing so much disappointment mentally and emotionally. So what he gave, I truly appreciate,' she said.