Some ratings and reactions:
Martinez - 10 - What a debut. Cool, calm and composed. Not much to do, but not a foot wrong, and that penalty save!
Cash - 6 - the lad can cross, but outside of that, was fairly uninspiring. Too easily beaten when defending.
Targett - 4 - pretty poor going forward, gave away a penalty because he failed to track his man, beaten nearly every time SU came forward. Needs replacing urgently.
Konsa - 8 - not a foot wrong and scored the winner. Job done.
Mings - 6 - many of his touches went further than i can kick a ball. Some sloppy passing. But got an assist.
McGinn - 4 - passing was terrible, rarely tracked back, constantly lost his runner in defence. Shocking. Carrying far too much weight and is clearly unfit. No idea how he stayed on for full 90.
Grealish - 7 - involved in anything good we did. Probably should have scored, but for some desperate defending. Sloppy passing on several occassions and also looked unfit.
Luiz - 7 - kept us ticking over and put a few dangerous through balls in. Decent defensively, but also looked spent by about 70 mins.
Hourihane - 6 - he was unlucky to be pulled ahead of McGinn. Didn't lose possession and looked tidy on the ball if un-threatening.
Trez - 5 - same as last season, ran and ran, but his end product is lacking and his tracking back often put us at risk
Watkins - 6 - very hard to judge him on that. Pretty much no service. Was unlucky not to score, but did little to help create chances.
Davis - 6 - took two defenders with him creating the space for Konsa to score. Won more headers than any other villa forward and held it up well. Perhaps should have been more selfish at the end and might have scored.
Dean Smith - 4 - still has no idea how to setup his side against 10 men, and still risks results by not making subs when players are clearly tiring and making errors. The win tonight comes in spite of, rather than because of him today, which is very disappointing.