Aston Villa manager Martin O'Neill has praised his side's commitment in the 2-0 win over Chelsea.
A debut strike from Zat Knight and a Gabriel Agbonlahor goal two minutes from time secured the win for Villa, but they were forced to survive an offensive Chelsea onslaught.
Chelsea dominated large periods of the game and O'Neill was delighted to see his team hang on for the points.
"I thought our commitment was second to none," O'Neill told Sky Sports News.
"We kept going. Some players were out on their feet towards the end as Chelsea got forward in search of the equaliser.
"We got a bit of luck to get the second goal, but we played terrifically and we had to right from start to finish.
O'Neill is also fully aware that his players will have to maintain this level of performance to improve in the Premier League
"They [Chelsea] are a really good side," O'Neill added. "This is not to sound patronising, they are really brilliant.
"We know that is the sort of standard that we have to achieve week in week out.
"You never take football for granted, but it would be nice to try and achieve that standard and that is what we are aiming for."