Pinilla (Sporting) scores!
The substitute fires in a sublime shot from long distance as Sporting take the lead for the first time. With the Alkmaar defence backing off, the midfield player dribbles forward to 25 metres out before unleashing a powerful drive to Timmer's right.

Polga (Sporting) is booked.
The Brazilian centre-back has not enjoyed a particularly fruitful game and on the rare occasions that Alkmaar have attacked, he has struggled to cope. Here he is penalised for a late challenge on Landzaat.

Sektioui (in) - Van Galen (out) (AZ)
The Moroccan enters the fray as Adriaanse perhaps look to steal a late winner her tonight.

Buskermolen (AZ) is booked.
The Alkmaar centre-back will be suspended for the return leg after becoming the second player to find his name in the referee's notebook.

Vlaar (AZ) is booked.
The centre-back become the first player to be cautioned a check on Liedson.

João Moutinho (in) - Barbosa (out) (Sporting)
The 18-year-old youth international enters the fray.

The second half begins.

The referee blows for half-time.

Douala (Sporting) scores!
Within a minute of Alkmaar taking an unexpected lead, the home side draw level, but there is more than a hint of good fortune about the equaliser. A long-range shot bounces off the legs of Vlaar and straight into the path of Douala, and the Cameroonian striker fires low past Timmer.

Landzaat (AZ) scores!
Against the run of play, Alkmaar break the deadlock with their first shot of the game. Jaliens again finds himself in an advanced position on the right flank and crosses to his captain who fires a first-time shot to Ricardo's left. A fine finish and a valuable away goal for the visitors.

The match is under way.