LONDON (Reuters) - If Arsenal are to have any chance of overturning a 2-0 deficit against Barcelona in the Champions League next month they must be sharper in front of goal, says manager Arsene Wenger.
They worked hard to keep the world's most fearsome attacking trio of Lionel Messi, Luis Suarez and Neymar relatively quiet until the 71st minute of Tuesday's last 16, first-leg tie but by then they had spurned two excellent chances to take the lead.
