Arsenal were held to a 2-2 draw by Sporting Lisbon in an entertaining Europa League last-16 first leg.
France defender William Saliba put the Premier League leaders ahead after just 22 minutes with a towering header before Sporting took advantage of poor defending to equalise 12 minutes later from a Goncalo Inacio goal.
The hosts completed the turnaround at the start of the second half as Paulinho found the net after Arsenal goalkeeper Matt Turner could only parry away Pedro Goncalves’ initial shot.
An own goal by the hosts’ Japanese midfielder Hidemasa Morita ensured Arsenal will start on level terms when the teams meet in the return leg at Emirates Stadium next Thursday.