Mumbai 86-0 (10 ovs) vs Chennai | Scorecard

Parthiv comes down the track and slogs Negi's first ball over midwicket for a six. The next ball is short and wide which the left-hander hammers through the covers for a four.

Dhoni has a chat with his young bowler as he seems a bit worried about Mumbai's growing opening stand.

Parthiv goes after the third ball, which is full and wide, but gets a bottom edge which goes through Dhoni's legs for a four.

He smashes the next one straight back at the bowler, who barely has time to react but does well to get his hand and stop some runs.

Two singles from the last two balls make it 16 runs from the over for Mumbai Indians, who look in complete control at this stage.

Just one over for Jadeja before he makes way for pacer Mohit Sharma. He is welcomed to the crease with a boundary as Simmons drive the first ball through the gap in the covers.

He cuts the next ball as veteran Michael Hussey half stops it at point to give away a single.

Mohit beats Simmons, who looks to steer it fine on the off-side but misses. He turns the next ball on the leg side for two runs to race to his fifty, from 38 balls.

Mumbai Indians in control at the halfway stage as they reach 86 for no loss in 10 overs.

Simmons has been the aggressor, hitting 51 from 39 balls, while Parthiv has also provided the momentum from the end to score 32 from 22 balls.