PSV Eindhoven have stepped up their pursuit of Hannover 96 defender Chris Gloster, making a bid for the U.S. Under-20 international, a source with knowledge of the situation has told ESPN FC.

- When does the transfer window close?

The source said the bid was submitted late on Friday and that Gloster had met with Hannover manager Mirko Slomka and informed him of his desire to join the Eredivisie side. With Gloster's contract having just a year to run, Hannover runs the risk of losing Gloster for free. And the source said the hope is that a deal can be finalized next week.

Gloster, 18, spent the bulk of last season with Hannover's reserve team, which plays in the fourth-tier Regionalliga Nord. He began the campaign with the U19s.

He made 16 appearances with the reserves and four with the U19s. But the left-back enjoyed an impressive series of games at the recently concluded FIFA U20 World Cup that was held in Poland, helping the U.S. reach the quarterfinals. Those performances have now helped him catch the eye of PSV.

With the U.S. senior team struggling to fill the left-back role, a move to the Netherlands could enable Gloster to move up the national team depth chart.

Hannover will spend the 2019-20 campaign in the 2. Bundesliga following a campaign that saw them finish next-to-last in the top tier with just 21 points, seven points adrift of the relegation playoff spot.