Tottenham delivered on their pre-season hype by thrashing Southampton 4-1 on Saturday, while Chelsea also got off to a winning start as Jorginho's penalty earned a 1-0 win at Everton.
Desperate to close the gap on Manchester City and Liverpool at the top of the Premier League, Chelsea, Tottenham, Arsenal and Manchester United have spent the close season aggressively pursuing new recruits with varying degrees of success.
Watch as Chelsea attacker Mason Mount reacts to watching Kasi Football.
Gabriel Jesus continued his impressive pre-season form with another goal as Arsenal thrashed Chelsea 4-0 in a friendly in Florida on Saturday.
Another chapter in the personal rivalry between former Liverpool teammates Sadio Mane and Mohamed Salah will play out in Rabat on Thursday when the African Player of the Year is named.
Chelsea, prepping for their first Premier League season since Todd Boehly's consortium bought the club, beat Mexico's Club America 2-1 in an international club friendly in Las Vegas.
Senegal international defender Kalidou Koulibaly has signed a four-year deal with Chelsea from Serie A club Napoli, the Premier League club announced on Saturday.
Raheem Sterling became Chelsea's first signing since Todd Boehly's consortium bought the club on Wednesday, ending his successful seven-year spell at Manchester City.
Raheem Sterling looks set to be the first major signing of the Todd Boehly era at Chelsea as according to media reports on Sunday they have agreed a fee with Manchester City.
France's World Cup winning midfielder N'Golo Kante and England international Ruben Loftus-Cheek are to miss Chelsea's tour of the United States as they do not meet the country's Covid vaccination standards.