A breakthrough season can either mean a young player reaching the first team or a senior player making a significant step up in his game. Read the top 10 in European football this season here.
Adnan Januzaj (Manchester United)
Adnan Januzaj was considered a huge prospect for the future by the Manchester United hierarchy, but was not expected to make such an impact this season.
The 19 year-old has managed four goals in the Premier League, making him the Red Devils’ fourth top goalscorer behind Wayne Rooney, Robin Van Persie and Danny Welbeck, while only Wayne Rooney and Juan Mata have provided more than Januzaj’s three assists in the English top flight.