Steve Smith has admitted that it was "very important" for Australia to attack England on day one of the second Ashes Test.
The tourists reached 337-1 at the close of play at Lord's, with Smith hitting an unbeaten 129.
"That was very important after Cardiff," Smith is quoted as saying by BBC Sport. "The pitch was a little bit slow and if you got in you needed to go big.
"Today was more about waiting for the bad ball and putting it away - I wanted to make it count today and get up on that board. It was about keeping them out there for as long as possible. We'll probably keep batting for a little while (tomorrow) and try and post a big first-innings total."
Smith has now scored 10 Test centuries for Australia, with four of those coming against England.