sentences:  He played his debut for Basel on 25 July 2015 in the away match at the Letzigrund against Grasshopper; he also scored his first goal for Basel in the match, which ended 3–2 for his side.Under trainer Urs Fischer, Janko won the Swiss Super League championship at the end of the 2015–16 and 2016–17 Super League season.It was Basel's eighth-straight title and 20th overall.