Four new signings! And plenty of talent already in the Sunderland squad as it prepares for a new season.
But what did pre-season training look like for SAFC stars of the past?
We found photos of Len Shackleton, George Herd, Brian Clough, Dave Watson, Sam Allardyce and Steed Malbranque being put through their paces.
Have a look at some Roker legends returning from their Summer break in style.
1. Pre-season beckoned for all of these SAFC stars in years gone by.
Pre-season beckoned for all of these SAFC stars in years gone by.
2. Len Shackleton gets in some training in this undated photo.
Len Shackleton gets in some training in this undated photo.
3. George Herd and Brian Clough have fun in training in the 1960s.
George Herd and Brian Clough have fun in training in the 1960s.
4. Limbering up in this July 1967 pre-season training photo. Recognise anyone?
Limbering up in this July 1967 pre-season training photo. Recognise anyone?