Bale could make a rare Premier League start against Burnley on Sunday after Tottenham boss Mourinho said he is playing with freedom again
Alli has largely been frozen out by Mourinho this season but enjoyed the best night of his reintegration to the squad following a failed exit in the January transfer window exit.
Europa League: Jose Mourinho says 'nobody's happy, but nobody's depressed' at Tottenham Hotspur despite slump
Spurs have lost five of their past six Premier League games to fall out of Champions League contention and Mourinho finds himself in an unprecedented situation in his long managerial career.
Stadiums with more than 40,000 seats, including the home of Premier League leaders Manchester City, will be allowed up to 10,000 fans spaced out. Smaller major venues will be permitted a quarter capacity
Jose Mourinho's team have been involved in 22 Premier League matches following Bale's return to the north London club but the 31-year-old has started just two of those.
Cup success is what Jose Mourinho may now need to save his job at Tottenham Hotspur and salvage his first full season in charge.
Dele Alli has rarely sparkled since Jose Mourinho took over as manager in November 2019 after Mauricio Pochettino was sacked.
The Spurs striker was sorely missed during Sunday's dismal 1-0 defeat at lowly Brighton after damaging both ankles in last week's 3-1 loss to champions Liverpool.
European football matchday: Tough test for Liverpool against Hammers; Atletico Madrid look to extend lead
Liverpool start in fourth place and two points ahead of West Ham, who have won their last four games.
Premier League: Jose Mourinho says Tottenham Hotspur won't use Gareth Bale as striker in Harry Kane's absence
Harry Kane suffered injuries to both ankles in the first half of Tottenham's 3-1 defeat against Liverpool on Thursday and did not appear after half-time.
Premier League: Harry Kane injury during Liverpool loss, reported dissent in Tottenham camp worsen Jose Mourinho's headache
The loss of Kane for a prolonged spell could prove costly in the hunt for a Champions League spot, the Europa League and the FA Cup.
Premier League: Tottenham manager Jose Mourinho says he expects out-of-favour midfielder Dele Alli to stay
Alli, 24, has been a peripheral figure for Mourinho at Tottenham Hotspur this season, playing just 74 minutes in 18 Premier League games.
Mourinho said Bale's overall performance — which set them up with a tough fifth round trip to Everton — had been pleasing.
Bale, hampered by fitness issues, has mostly been confined to Europa League games, playing just 45 minutes of Premier League football since early November.
The 24-year-old has been linked with a move away from the north London side after falling out of favour under Mourinho.
Premier League: Manchester United retain top spot after Liverpool draw, Manchester City up to second
Manchester United are two points clear of second placed Manchester City, who have a game in hand, and third placed Leicester.
Tottenham are on a seven-match unbeaten run in all competitions after winning at Bramall Lane for the first time since 1975.
Premier League: Aston Villa-Tottenham game postponed due to positive COVID-19 cases, Spurs to play Fulham instead
Mourinho had said it was "completely impossible" for any more of his side's matches to be postponed amid a fixture pile-up with Spurs still involved in four competitions.
Spurs fielded a strong side featuring Dele Alli, Toby Alderweireld and Lucas Moura, while Harry Kane's replacement Vinicius scored a hat-trick
Liverpool have provided Marine with video analysis of Jose Mourinho's side as well as use of their training ground. Everton have also let Marine access to their training ground at Finch Farm to train.