Former England captain Michael Vaughan has warned Dom Sibley that he "needs a big score" in England's second Test against India in order to avoid getting dropped.
England's top order has come under fire from fans and pundits alike, with Sibley, Rory Burns and Zak Crawley managing just one century between them in England's last nine Tests.
As a result of England's batting concerns, Crawley has been dropped for the Lords Test, with Haseeb Hameed replacing him.
And Vaughan has warned that Sibley could be the next England batsman axed if he does not deliver in this Test.
Speaking on BBC Test Match Special, Vaughan said: "Dom Sibley is playing and it is a massive week for him - he needs a big score.
"You look at the way he played in Nottingham - he got 18 in the first session, which I didn't mind because the ball was moving around.
"You want your openers to be attritional when the ball is moving around. In the second innings his flaws were identified.
"He has played 21 Test matches, and I always look if they are improving, and he got 28 off 133 deliveries when the pitch was playing at its finest.
"Joe Root had to do all the work. You can't always rely on him - England have depended on him this year."
Writing in his column for the Telegraph, Vaughan added that he thinks Hameed should open instead of Sibley, with Dawid Malan batting at number three in place of Crawley.
"He looks to me like he has hit his ceiling," Vaughan wrote of Sibley.
"We know he can wear down opposing players but he relies on Root scoring quickly at the other end.
"What happens if Root gets out? To score 28 off 133 balls on a flat one at Trent Bridge, which it was on Saturday, was too ponderous.
"He has played 21 Tests and I have not seen an improvement. Yes we know he is a leg sided player but does he consistently pierce gaps when he gets one on the leg side?
"Some of his attributes we would like to gift to the strokeplayers; his ability to bat for long periods of time and concentrate.
"But the problem is can he get better with that technique? He is compared to Jonathan Trott, who had a leg sided game but Trott could also play on the off side.
"He could play the cut shot and a punch through extra cover for four. He was a good off-sided player but chose not to play on that side.
"My worry with Sibley is that he will build up too much pressure on flat pitches when the ball is not doing anything because he cannot score runs.
"Opposition players like bowling to him because they know he is not going to hurt them. I would give Haseeb Hameed a chance in place of Sibley [and] send an SOS to Dawid Malan to bat at three".
