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Europa League: FT - West Ham 1-0 Olympiakos
Lucas Paquetá scores only goal
Europa Conference League: FT: Aston Villa 2-1 AZ Alkmaar
Diego Carlos cancels out Vangelis Pavlidis opener before Ollie Watkins scores
Earlier, Brighton win 2-0 at Ajax but Liverpool beaten 3-2 at Toulouse
Reds had late equaliser ruled out by VAR
West Ham 1-0 Olympiakos
West Ham still have a lot of graft to do here.
Olympiakos are not quite throwing the kitchen sink, more just a few pots and pans as we tick towards the end of the 90 minutes.
Rodinei cuts in from the right and tries his luck with a shot which arcs wide.
Aston Villa 2-1 AZ Alkmaar
Five minutes added on.
West Ham 1-0 Olympiakos
Oh my! A huge let-off for West Ham.
An Olympiakos set-piece, which has been their likeliest route to a goal, is flicked on at the near post by Jackson Porozo towards team-mate Mady Camara at the back stick.
He can only volley against the post from close range.
Aston Villa 2-1 AZ Alkmaar
Pau Torres replaces Diego Carlos as home fans chant 'Diego, Diego'.
Aston Villa 2-1 AZ Alkmaar
Villa defender Diego Carlos, who scored his first goal for the club today, is down injured and getting treatment on his leg.
Aston Villa 2-1 AZ Alkmaar
The whistle already has gone for a free-kick to Villa when Vangelis Pavlidis gets his shot away. Saved by Emiliano Martinez anyway.
West Ham 1-0 Olympiakos
Can West Ham seal this in the final five minutes? That would alleviate the lingering tension.
James Ward-Prowse swings a free-kick into the Olympiakos box but Konstantinos Mavropanos cannot direct his header on target.
Should have done better. Wonder if that will prove costly.
West Ham 1-0 Olympiakos
Keep it calm, lads. Nothing daft in the final 10 minutes...
Oh, Lukasz Fabianski didn't receive the instructions.
The West Ham keeper charges out of his goal to claim a high ball into the box and spills it.
His blushes are saved as the ball is stuck wide. Looks like the Olympiakos forwards were offside, too.
Aston Villa 2-1 AZ Alkmaar
That is Ollie Watkins' 10th goal of the season. Villa only have six minutes plus stoppages to see this win out.
Aston Villa 2-1 AZ Alkmaar
Joe Rindl
BBC Sport at Villa Park
Villa have turned it around! Ollie Watkins has a quick glance over at the flag as he celebrates.
He's onside, this one will definitely count.
West Ham 1-0 Olympiakos
Turns out West Ham didn't need a sub to change the game.
Sorry, Moyesy.
Now here is a switch as central midfielder Edson Álvarez is replaced by the ever-dependable Tomas Soucek.
Ollie Watkins (81 mins)
Ollie Watkins has had a quiet night... and now he's probably scored the winner.
The striker comes alive in the box to run in behind from Douglas Luiz's clipped ball over the top and he nods past Mat Ryan.
West Ham 1-0 Olympiakos
Simon Stone
BBC Sport at the London Stadium
Without VAR, West Ham would now be complaining at having a perfectly good goal disallowed.
VAR clearly has its faults. But it is not going away.
West Ham 1-0 Olympiakos
All good! West Ham lead and the atmosphere inside London Stadium has completely changed.
The gloomy mood has been replaced by a mixture of elation and relief.
Aston Villa 1-1 AZ Alkmaar
Nicolo Zaniolo has a chance moments after coming on. He runs through the middle and blams in a shot from 25 yards. Mat Ryan spills it but then recovers.
West Ham 1-0 Olympiakos
Oh, VAR is getting involved.
Why? Lucas Paqueta is yards onside.
The linesman flagged just in case, it seems, but he was clearly on.
Lucas Paqueta (73 mins)
Yes they can!
Finally a piece of quality from West Ham and it brings the opening goal.
James Ward-Prowse turns his right foot into a pitching wedge, dinking over the Olympiakos defence into the path of Lucas Paqueta, who does the rest with a neat volley from 10 yards out.
West Ham 0-0 Olympiakos
Olympiakos are getting so deep they're almost back at Upton Park.
West Ham need to be patient. Can they find a way through?
Aston Villa 1-1 AZ Alkmaar
Villa bring on Matty Cash, Douglas Luiz and Nicolo Zaniolo for Youri Tielemans, Moussa Diaby and Ezri Konsa.
West Ham 0-0 Olympiakos
David Moyes has sent his substitutes down the touchline to warm up.
Pablo Fornals, Tomas Soucek and Danny Ings look to be the ones going through more vigorous exercise.
Twenty minutes of normal time to go.