The 2017–18 season is Middlesbrough's first season back in the Championship, making an immediate return to the division following relegation from the Premier League the 2016–17 Premier League was the 25th season of the Premier League, the top English professional league for association football clubs, since its establishment, in which year?
2017–18 Middlesbrough F.C. season: The 2017–18 season is Middlesbrough's first season back in the Championship, making an immediate return to the division following relegation from the Premier League the previous season, in their 142nd year in existence. 2016–17 Premier League: The 2016–17 Premier League was the 25th season of the Premier League, the top English professional league for association football clubs, since its establishment in 1992.
1992