Liverpool themselves had a window to forget after Ibrahima Konate ended up being the only addition to the squad over the summer.
However, their rivals have been quite busy and here's a look at how the Reds' top 6 rivals spent their money this summer and if it made them better.
Manchester City
Ins: Jack Grealish, Scott Carson
Notable outs: Sergio Aguero, Eric Garcia
It was a relatively quiet window at Manchester City with Pep Guardiola keeping hold of his best players and bringing in Jack Grealish on a £100 million transfer from Aston Villa.
However, the oil-rich club have failed to sign Tottenham striker Harry Kane and head into the new season without a dedicated No. 9.
Rating: 6/10
Chelsea
Ins: Romelu Lukaku, Saul Niguez
Notable outs: Fikayo Tomori, Tammy Abraham, Olivier Giroud, Kurt Zouma
Chelsea's transfer window ended up being much better than initially expected following the deadline day arrival of Saul Niguez from Atletico Madrid on a season-long loan with an option to buy.
Romelu Lukaku from Inter Milan, of course, was the biggest summer transfer in the Premier League.
Rating: 8/10
Tottenham
Ins: Cristian Romero, Pierluigi Gollini, Bryan Gil, Pape Matar Sarr, Emerson Royal
Notable outs: Danny Rose, Erik Lamela, Moussa Sissoko, Serge Aurier
Tottenham are reaping the rewards of a very successful summer transfer window, sitting at the top of the Premier League table with 9 points after 3 games. However, keeping hold of Harry Kane could prove to be Spurs' biggest deal of the deal.
The England skipper is yet to start firing and things are looking up for Spurs under new manager Nuno Espirito Santo's men this season.
Rating: 7.5/10
Arsenal
Ins: Nuno Tavares, Albert Sambi Lokonga, Ben White, Martin Odegaard, Aaron Ramsdale, Takehiro Tomiyasu
Notable outs: Dani Ceballos, David Luiz, Willian, Hector Bellerin, Joe Willock
Few clubs can spend £150 million in one transfer window and still leave their fanbase leaving completely demoralised — but Arsenal have somehow managed to pull it off.
The Gunners have brought in a lot of young and promising talent but Mikel Arteta's men remain rock bottom of the Premier League table after finishing 8th last season.
The problem seems to be much deeper than something that can be fixed with just transfers but that in itself is deeply concerning for the London club.
Rating: 3/10
Manchester United
Ins: Jadon Sancho, Cristiano Ronaldo, Raphael Varane, Tom Heaton
Notable Outs: Sergio Romero, Axel Tuanzebe, Dan James
Manchester United brought in 3 world-class players and replaced Sergio Romero with a good 3rd keeper to have in the squad.
They also didn't lost any significant players and the signings of Ronaldo and Sancho will surely take their attack to the next level.
Quietly one of the best windows of any club, although they did fail to address the defensive midfielder position which could prove to be a problem.
Rating: 7.5/10
