Chelsea loanee Ian Maatsen hasn’t ruled out a permanent move to Borussia Dortmund in the summer after an exceptional start in the Bundesliga. HITC Football had revealed that Borussia Dortmund signed Manchester United’s Jadon Sancho as well as Ian Maatsen from Chelsea on six-month loan deals. Maatsen was immediately integrated into the Black and Yellows’ lineup playing the full 90 minutes in their 3-0 victory away at Darmstadt last week. The 21-year-old’s sensational debut warranted his spot at left-back as he was in Dortmund‘s starting eleven when they travelled to face Koln on Saturday. His i…