Southampton made hard work of Birmingham City on Saturday, needing a last gasp winner to beat the ten-man Blues. Joe Aribo provided the match-winning moment from the bench to put Southampton back on track, however the fact the Saints shipped three goals will worry manager Russell Martin. Despite the defensive woes, there were a number of good individual performances in the Southampton ranks. Adam Armstrong scored his first goal in five, whilst loanee David Brooks showed his Premier League quality from the right of the front three. Most notable though, was the performance of Will Smallbone in m…