Arsenal are yet to break the deadlock in their Europa League quarter-final clash with Slavia Prague, despite enjoying the better of the half.
Just before the half-hour mark, Saka had the ideal opportunity to put the Gunners ahead in the tie however.
Saka broke free inside the box as he run at the goalkeeper, but his effort went hopelessly wide of the far-post.
Pictures courtesy of BT Sport
As you can see the flag goes up but the replay clearly shows that VAR would have had to have overturned the decision.
There is still plenty of time to put things right, but it would have been nice to get the early breakthrough.