Donald Trump Jnr has waded in on the debate surrounding transgender cyclist Rachel McKinnon competing as a woman.

The 37-year-old Canadian successfully defended her sprint title in Manchester this weekend but has faced a backlash on social media over her place in the women's competition.

Following her victory, the US President's eldest son took to Twitter to make his feelings known.

Alongside a link detailing McKinnon's win, he left the caption: "You can never be woke enough! Sorry to all female athletes who spent their lives mastering their games."

McKinnon then retweeted Trump with the comment: "Oh THIS explains the explosion of hate messages I'm getting."

Trump Jnr also posted a comment from a 'Christian conservative mom' who said: “The ultimate male privilege is men being able to dominate women’s sports. All the gains women have made toward equality flushed."

He added the comment: “It’s funny because it’s true. Sad."

McKinnon was born biologically male but began her transition as she was finishing her doctorate and officially informed her students that she was transgender in May 2012.

She won her first track world title in 2018, becoming the first transgender track cycling world champion. 

Former Apprentice contestant and outspoken commentator Katie Hopkins tweeted: "For clarity - this was the WOMEN'S world championships. I repeat. Women's. Congratulations to the brave faces of silver & bronze. The world is gripped by a febrile madness."

The tweet has since been removed.

McKinnon's inclusion in elite women's competition was also criticised by cyclist Victoria Hood who described her participation in the women's event as 'unfair' and said she still had a biological advantage.

Prior to her title defence, McKinnon publicly defended her right to compete as a trans woman, saying: "By preventing trans women from competing or requiring them to take medication, you are denying their human rights."