A lawsuit against Dallas Cowboys quarterback Dak Prescott alleging sexual assault has been dismissed.

A woman filed a criminal complaint against Prescott in March, alleging that the 30-year-old sexually assaulted her in the back of a car in a Dallas strip club car park in February 2017.

In May the Dallas Police Department said criminal charges would not be pursued against Prescott because of a lack of evidence.

The accuser’s attorneys dropped the suit in Dallas County and filed a similar one in Collin County, which is also in Texas.

Prescott has now filed an extortion lawsuit to Collin County, alleging that the accuser and her attorneys demanded $100m (£79m) in January before the original criminal complaint was submitted.

Collin County Judge Angela Tucker has set a hearing on 13 September to determine if the accuser should face sanctions for the damage caused to Prescott by the allegations.

“Despite [the accuser] and her legal team’s relentless efforts to extort money and damage Dak’s reputation, justice has consistently prevailed and will continue to do so,” said Prescott’s attorney Levi G McCathern.

“These ploys distract from the trauma of legitimate sexual assault survivors and undermine the progress that our society has made in supporting them.”

Prescott joined the Cowboys in 2016 and was named NFL offensive rookie of the year in his debut season.