Steve Smith's hilarious reaction to Mitch Marsh's hundred

Frantic reaction: Steve Smith. Photo: Supplied

Frantic reaction: Steve Smith. Photo: Supplied

Australian captain Steve Smith has produced one of the more humorous moments of the summer by screaming in panic at Shaun and Mitch Marsh to get back in their creases after the latter brought up his second Test ton at the SCG on Sunday. 

With his score on 99, the younger Marsh hit a ball through the offside to bring up his hundred. 

During a second run, Mitch grabbed Shaun for a mid-pitch hug but it quickly became apparent the pair had to scramble back to their respective ends to ensure they did not get run-out.

As it turned out both made it home safely but Smith, sitting with teammates in the stands, was visibly worried something terrible was about to unfold. 

Channel Nine showed footage of Smith clapping in delight before yelling in horror at the pair to get back in their crease. 

Once the mini crisis had been averted, Smith put his hands on his head and appeared to mouth the words "f*** me" as teammates around laughed hysterically at their animated captain. 

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Commentator Michael Slater burst into laughter when he saw the footage, before adding: "so animated all the time". 

Run out averted: Mitch Marsh celebrates his hundred. Photo: AAP

Run out averted: Mitch Marsh celebrates his hundred. Photo: AAP

One could only imagine Smith's reaction if one of the Marsh brothers were run out while celebrating a proud moment for their family. 

Social media went into overdrive after footage of Smith was shared around, with many agreeing it was a classic moment of the summer. 

Shaun and Mitch Marsh have become the first Australian brothers since Steve and Mark Waugh in 2001 to score a hundred in the same innings of a Test. 

After a big celebration to the delight of a healthy SCG crowd, Marsh was dismissed next ball, bowled by an excellent delivery from England seamer Tom Curran. 

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