LISBON, April 7 (Reuters) - Arsenal substitute Kai Havertz scored a stoppage-time goal to snatch a 1-0 win at Sporting in the first leg of their Champions League quarter-final on Tuesday.
The Germany forward was found unmarked inside the box by Gabriel Martinelli before calmly slotting the ball past goalkeeper Rui Silva to settle a tactical encounter.
After a first half in which Sporting's Maxi Araujo and Arsenal's Noni Madueke struck the woodwork, the visitors had a Martin Zubimendi effort disallowed before David Raya produced several late saves to deny the home side.
The deadlock was finally broken in added time by Havertz, who replaced the injured Martin Odegaard in the 70th minute, to secure the advantage before the return legnext Wednesday.
(Reporting by Tommy Lund in Gdansk; Editing by Ken Ferris)
