3rd if it happens without any interruption is going to be a good contest as both teams will play their best of the match and England will want to make it 2-0 and other hand Pakistan will try to win and draw this series. Also, need to check if any of the team will make any chances in their side or will continue with the same team.
In all probability the 3rd test will end up as a draw, as the weather predictions are not that promising. In that case, England will end up with 66 points from the series, which would put them at a severe disadvantage against teams such as Australia and New Zealand in the ICC World Test Championship. Pakistan won't be happy either, as they wasted a chance for a victory during the first test. Had they won the first test, then they could have ended up with 66 points.