Manchester United are planning for a big off-season after star striker Romelu Lukaku claimed "a lot of good players" will move to Old Trafford in 2018-19.
United invested heavily this season, signing Lukaku, Nemanja Matic, and Victor Lindelof in July before Alexis Sanchez arrived from Arsenal in January but the Red Devils have taken a back seat to neighbours Manchester City this term.
Jose Mourinho's are second and 16 points adrift of City in the Premier League, while United sensationally crashed out of the Champions League in the round of 16 on Tuesday.
And United – who overcame Brighton and Hove Albion 2-0 in the FA Cup quarter-finals on Saturday – are set to be active in the transfer market again, according to Lukaku.
"We are Manchester United, we have to improve every year and I know that a lot of players, a lot of good players, will come in next season. That's for sure," said Lukaku, who scored against Brighton to take his season tally to 25 goals.
"That is something I look forward to, in order to improve the squad, and what the manager also looks forward to because next year we have to win.
"We will have to try and win as many trophies as we can."
Mourinho was scathing of United, despite their victory over Brighton at Old Trafford, accusing his players of being scared to play, while he was also critical of Luke Shaw's performance on Saturday.
The Portuguese's post-match comments came after his passionate 12-minute monologue during Friday's news conference, in which he defended his record as United manager following their 2-1 aggregate defeat to Sevilla.
Despite the scrutiny over United's exploits this term, Lukaku said: "I don't believe we are really that short in being able to compete in the big competitions.
"We knew immediately after the game against Seville that we weren't good enough, so we accept the criticism."
Lukaku also leapt to the defence of under-fire team-mate Sanchez, who was an unused substitute in the FA Cup clash.
Sanchez has only scored once in 10 appearances for United – against Huddersfield Town in February – since his high-profile transfer from Arsenal.
"As long as he keeps working hard like he does, I think he'll come good for us," the Belgium international added. "He is a quality player with a lot of assets.
"Look at my situation. I started really well and then had the dry spell in November and December. But at the end of the day with hard work you are always going to get through it."
|MLS Review: LAFC, Atlanta held at home|
|Stones will watch re-runs of England´s World Cup matches|
|Ferdinand challenges Mourinho to unleash Pogba at United|
|Mbappe: I´m staying at PSG|
|Former NHL goalie Ray Emery found dead|
|Pirates secure five-game sweep of Brewers with walk-off win|
|WATCH: LeBron receives standing ovation at Lakers´ summer league game|
|Tony Romo wins celebrity-filled American Century Championship|
|McGregor praises Putin after attending World Cup final|
|Open-bound Kim claims maiden title with eight-shot triumph|
|Eagles running back Sproles plans to retire after next season|
|World Cup winner Rami retires from international football|
|Wimbledon champion Djokovic did not expect grand slam glory so soon|
|Ibrahimovic praises Pogba after World Cup final display|
|Wimbledon diary: Avengers too late for an Infinity War as Djokovic triumphs|
|Deschamp-agne – France´s 2018 vintage interrupt news conference to drench coach|
|I may have to dust my boots off! - Pele threatened by Mbappe exploits|
|WATCH: Mendy and Pogba dab with president Macron after World Cup win|
|Woods embracing ´different´ Carnoustie challenge ahead of Open return|
|Argentina dismiss Sampaoli after chaotic World Cup|
|France celebrates World Cup triumph|
|Djokovic made ´improvised Wimbledon trophies´ as a boy|
|Stone goes agonisingly close to 59 as Pepperell & Dantorp also make Open|
|Outcast Benzema delights in France win|
|Final a triumph in itself given Croatia´s off-field turmoil|
|Anderson laments Wimbledon final nerves|
|Deschamps joins elite club, Mbappe second to Pele - the best stats from the World Cup final|
|Belgium´s Courtois wins World Cup Golden Glove|
|Collarbone fracture confirmed for ´devastated´ Porte|
|World Cup final player ratings: Griezmann, Mbappe inspire France as Croatia fall short|
|World Cup winner Giroud ends tournament without shot on target|
|Modric wins World Cup Golden Ball|
|Mbappe wins World Cup Young Player award|
|Deschamps redeemed as France win World Cup final for the ages|
|France 4 Croatia 2: Twitter Report|
|Tomlin optimistic over Bell contract|
|Kane wins World Cup Golden Boot|
|Ajax keen on Blind deal - Van der Sar|
|France 4 Croatia 2: Pogba and Mbappe seal thrilling World Cup triumph|
|Anderson would have played another 21 hours to reach Wimbledon final|
|Djokovic delighted to crown ´comeback´ with Wimbledon glory|
|World Cup final interrupted by pitch invaders - Pussy Riot claim responsibility|
|Djokovic´s grass-court U-turn pays ultimate dividends with Wimbledon title|
|Mandzukic makes World Cup history with early own goal|
|Dominant Djokovic beats Anderson to regain Wimbledon title|
|Everybody said I´m done - Degenkolb revels in first Tour victory|
|´Big party´ for Marquez after Sachsenring success|
|Hazard enjoys Belgium´s welcome home|
|Ex-AC Milan president Berlusconi conflicted over Ronaldo to Juventus|
|Spain did not contact Martinez over head coach vacancy|
|Maybe the VAR was watching The Simpsons! - RSL coach Petke slams MLS officials|
|Cubs´ Darvish hopes to return by next weekend|
|France and Croatia name unchanged sides for World Cup final|
|Marquez maintains Sachsenring dominance|
|Courtois claims World Cup has boosted his value|
|Buffon beaten on difficult PSG debut|
|Vince called up for Headingley decider|
|Farah inspires Tigers win over Dragons, Warriors and Roosters triumph|
|Crash forces Porte out of Tour for second year running|
|Ronaldo considered Napoli move, says De Laurentiis|
|Mafi arrested for allegedly assaulting Rebels team-mate|
|Everybody is welcome - Croatia pitch for neutral support in World Cup final|
|West Ham seal club-record swoop for Felipe Anderson|
|Rooney applauds England for capturing fans´ imagination|
|Krajicek urges Anderson to go for broke in Wimbledon final|
|Wimbledon 2018: Djokovic v Anderson in Opta numbers|
|Kohli defends Dhoni after Lord´s boos|
|Wimbledon finalist Djokovic can win the next six majors, claims Krajicek|
|We´re ´blessed´ to watch Mbappe, says Kaka|
|Bogaerts hits walk-off grand slam to deliver Red Sox win over Blue Jays|