Overton was struck on the helmet on Sunday by the second ball he faced from his twin brother, Jamie. He initially retired hurt for a concussion check and then returned later in the Somerset innings
Craig Overton has been ruled out of the remainder of Somerset's LV= Insurance County Championship match against Surrey after suffering delayed signs of concussion.
Overton was struck on the helmet on Sunday by the second ball he faced from his twin brother, Jamie. He initially retired hurt for a concussion check and then returned later in the Somerset innings.
However, he was replaced in the match by Marchant de Lange on Monday morning after the England man displayed delayed signs of concussion. De Lange is the second concussion replacement being used by Somerset in this game alone, having earlier swapped out Josh Davey for Kasey Aldridge.
"I don't want to hit people in the head," said Jamie on Sunday. "But it's part and parcel of being a fast bowler - you might have to do it every now and again.
"I didn't really want to hit Craig, but let's just say he didn't play it very well! I knew he was fine straight away. I went up to him and he said he was absolutely fine. It felt a little bit weird bowling at him for the first time - I was a little bit nervous."
Craig Overton was struck by his twin brother, Jamie (Harry Trump/Getty Images)
Overton was released by England ahead of the second Test against New Zealand to return to Somerset after it became clear that he would not be involved at Trent Bridge.
By concussion protocols, which require a minimum seven-day period for "a graduated return to play", Overton could still be available for the final Test of the series, which begins on June 23.
It is the second concussion incident to befall an England player since the start of the series; Jack Leach was ruled out of the opening Test on the first morning after landing awkwardly while diving to save a boundary.