"Unfortunately, we don't get a second chance. We've already played them twice"

This quote by Trevor Brooking is describing a situation in which a group has actually already played another team twice and will not have the chance to play them once again. This could be in the context of a sports match, where teams are just enabled to play each other a specific variety of times. Brooking is stressing the value of taking advantage of the opportunities that are provided to us, as we may not get a 2nd possibility. He is suggesting that the group needs to have benefited from the 2 opportunities they had to play the other team, as they will not get another opportunity. This quote is a suggestion to make the most of the chances that come our method, as we might not get a 2nd chance. It is likewise a suggestion to not take anything for approved, as we may not get a 2nd possibility to make things right.