Epke Zonderland is among those entered for the World Cup event ©Getty Images

Olympic champion Epke Zonderland is among the leading entries for the second International Gymnastics Federation World Challenge Cup of the European season, starting in Koper, Slovenia tomorrow.

Zonderland, the Dutch London 2012 Olympic horizontal bars champion and 2013 and 2014 world champion, will be up against the man who beat him into second place on the apparatus at last year's World Championships in Montreal.

This is Tin Srbić, the Croat who also won on home mats at last week's World Challenge Cup in Osijek.

Action will take place over four days at the Arena Bonifika.

Competition will begin with two days of qualification before finals over the weekend.

Giulia Steingruber is among other leading entries ©Getty Images
Giulia Steingruber is among other leading entries ©Getty Images

Swiss star Giulia Steingruber, the two-time champion at the Baku 2015 European Games who is the reigning world and Olympic vault bronze medallist, is among top female entries.

Others include Dutch hope Eythora Thorsdottir, a silver and bronze medallist at last year's European Championships.

Tjaza Kysselef, a vault silver medallist in Osijek last week, will lead the home Slovenian challenge.