Neah Evans has suffered a blow to her gold medal hopes in the women's omnium after crashing during the scratch race. 

The Team GB star lost control while riding in the middle of two other riders and finished in last place.

Evans, who already has a silver medal in Paris, will undergo concussion protocol before the ominium continues later.

There were fears she might have hit her head in the crash, but she was able to get back to her feet, get back on her bike and finish the race - albeit last of the 22 competitors. 

The winner of the omnium is whoever is able to obtain the most points throughout the first four races, and her crash in race one has given her an uphill challenge to get into medal contention. 

She previously took a silver medal alongside Elinor Barker in the women's madison final on Friday.

Evans wasn't the only Team GB athlete to crash on Sunday as Hamish Turnbull was involved in an unfortunate collision in the men's keirin. 

 Germany's Luca Siegel fell first and clipped Turnbull's rear wheel, sending him spinning towards the barrier before crashing to the floor.

Both riders were able to get to their feet, though Turnbull appeared to be in some discomfort walking off the track - with his suit ripped on the back.

Evans and Turnbull becomes the latest Team GB athletes to be involved in crashes - albeit, not as controversial as the one Ollie Wood suffered on Saturday.   

Wood appeared to be headbutted by Dutch rival Jan Williem van Schip.

With just 39 laps remaining, Wood was suddenly catapulted into a hard fall after his helmet was struck from behind by Willem van Schip.

It was inconclusive from television replays whether the contact was deliberate, though it looked ugly inside the velodrome, with the collision leaving Woods sprawled across the boards. 

The Dutch team were disqualified with Willem van Schip fined 1,000CHF (£720) for' improper conduct and behavior that endangers another rider (blow with the helmet)', according to the commissaires' decision.

After limping into the interview area with a heavily swollen knee, he said: 'He hit me so hard. I felt like a crash test dummy.

'I will survive. I didn't see anything.'

Wood added: 'It's just a bit different when you get hit from behind - you don't see it coming. There are a lot of people resting and riding at any one time. Instead of taking a high line around the track, I thought he'd cut it a bit fine and just ploughed into me.

'I've not watched it back. I'm trying to catch my breath. I have no clue, absolutely no clue. All I know is I got hit really hard from behind by literally the biggest rider on the track.

'Everyone's cognitive functions started to decline rapidly at one given point - you could see there were people having laps of concentration. When there are people all over the track, it is inevitable that people are going to collide wheels or whatever.

'I don't know what I have done but my knee really hurts and my a*** really hurts.

'I feel like I've been rear-ended by a lorry.'