Moyes was infuriated with his side's collapse at home to Crystal Palace last week when they let a two-goal lead slip to lose 3-2.
And this week, he's been taking his frustrations out on the players hoping it has a the desired effect against West Brom tomorrow.
“The gaffer is not taking any prisoners now," said Anichebe, who made his Sunderland debut off the bench last weekend.
“He is getting into everyone.
“He is hammering into us about shape, defending and the basics of football.
“It is back to the way he used to be.
“All the boys have been on a fitness regime because he wants us to work harder and run more.
“We can improve as a whole and it will get better."