# Michael Clarke's 24th hundred in Tests is his fifth vs England. (Read Day 1 report)
# Clarke's 125 not out off 169 balls is his third hundred in Tests in England - his first two were 136 at Lord's and 103 not out at Birmingham - both in 2009. (Scorecard)
# Clarke has recorded ten hundreds as captain in twenty seven Tests.
# The seven Australian captains with most Test hundreds are Ricky Ponting (19), Allan Border (15), Steve Waugh (15), Don Bradman (14), Greg Chappell (13), Bobby Simpson (10) and Michael Clarke (10). (Highlights)
# Chris Rogers (84) has posted a career-best score, eclipsing the 52 at Trent Bridge last month. These are his only two innings of fifty-plus in Tests.
# Shane Watson continues his super flop show, aggregating 227 (ave.20.63) in eleven innings in Tests in 2013. His last Test fifty was 83 vs Sri Lanka at MCG in December 2012.
# David Warner is the last Australian opener to post a hundred in a Test match - 119 vs South Africa at Adelaide in November 2012. No Australian opener has recorded a hundred in eleven Test matches.
# Smith and Clarke were involved in a stand of 174 (unbroken) - Australia's highest partnership for the fourth wicket vs England at Old Trafford - previous highest was 173 between Neil Harvey and Graeme Hole in 1953.