This is a big one for me. I’ve always struggled with mobility in this area since playing rugby but it can also be brought on with spending lots of time sat at desks.
This exercise is great for increasing the range of movement and opening up the chest. Grab a mobility stick or PVC pipe. With a full grip with hands a little wider than shoulder width apart, forehead flat on the floor and toes pushing into the floor.
Lift the bar as high as you can from the ground and then pull it down behind your head as far as you can go, keeping a full grip at all times. Do 3 sets of 5 reps and see the progress you make in just 5 mins.