SUNDERLAND, ENGLAND - AUGUST 21: Sunderland player Jeremain Lens in action during the Premier League match between Sunderland and Middlesbrough at Stadium of Light on August 21, 2016 in Sunderland, England. (Photo by Stu Forster/Getty Images )
SUNDERLAND, ENGLAND - AUGUST 21: Sunderland player Jeremain Lens in action during the Premier League match between Sunderland and Middlesbrough at Stadium of Light on August 21, 2016 in Sunderland, England. (Photo by Stu Forster/Getty Images )