Belgium international is ready to join Real Madrid or Paris Saint-Germain in the summer.
Chelsea will also have Diego Costa back for Baggies clash.
Townsend has played in five consecutive games for the Under-21 side.
The Brazilian star has been heavily linked with Manchester United in recent times.
Centre-back had previously made just eight appearances during a disappointing spell with Southampton.
Gunners visit the Merseysiders on Wednesday night following their FA Cup win over Sunderland.
Spaniard claimed earlier this month that he expects to coach in England next season.
In-form Belgian will play for the Toffees against Manuel Pellegrini's men.
Alli has made a big impact at White Hart Lane this season and is set to remain in north London until 2021.
The manager says he has found the perfect environment to thrive at the Emirates Stadium.
The former Manchester United striker has issued a stark warning to the Dutchman.
The 32-year-old right-hander has shaken off a stomach problem ahead of the third Test.
Messi sealed his fifth award in Zurich on Monday.
Manchester City face Everton in a Premier League clash on Wednesday. Find out how to follow the match live in the UK.
Infantino stakes claim to replace disgraced Sepp Blatter at 2015 Fifa Ballon d'Or.
Tottenham Hotspur host Leicester City in the league on Wednesday, 13 January. Find out where to follow in the UK.
Jurgen Klopp takes on Arsene Wenger for the first time in the Premier League on Wednesday.
The 26-year-old German insists he is happy playing his football in the Bundesliga.
Coloccini limped off during the FA Cup defeat to Watford.
The 45-year-old admitted he is not sure if Eddie Jones' men can win the 2016 tournament.
Pirelli are conducting a special wet weather tyre test ahead of the 2016 season.
Arsenal will travel to Anfield to take on Liverpool in the Premier League on Wednesday.
Luis Enrique's side travel to the Cornella-El Prat with a three-goal advantage from the first leg.
Sam Byram and Lewis Cook have both been linked with big money moves.
3pmstream.com, ifirstrowuk.eu and rojadirecta.es are among the newly blocked pirate domains in the UK.
The 57-year-old manager has defended the record of Jose Mourinho at Stamford Bridge.
The former World Player of the Year was initially reluctant to wear the number seven at Old Trafford.
The Frenchman confessed players are reluctant to sign for the Midlands club.
Ben Chilwell will sign a new contract with Leicester City in the coming days.
The Dutchman has admitted the Red Devils have struggled to inspire their fans.