Michael Powell pulls for four en route to 100

A delighted Michael Powell reaches 1,000 runs for the season

Michael Powell and James Franklin walk back out from the pavilion

Another cover drive takes Michael Powell past 150

A watchful Michael Powell plays forward to Martyn Ball

Michael Powell glances a ball off his hips as he approaches 200

Michael Powell reaches 200

Michael Powell celebrates his career-best double hundred

Michael Powell cuts the ball to the boundary as he gets closer to a triple hundred

Michael Powell is caught behind for 299

Michael Powell is congratulated by Gloucestershire captain Alex Gidman