Jansen's Five-For Puts Australia on the Follow-On

Marco Jansen claimed five wickets on day four of the second Test as Australia's first innings collapsed, leaving the side from Down Under with no option but to bat again straight away. The South African seamer did the damage as the order fell away wicket by wicket once the tail was exposed.

Under Test rules, a team that trails by 200 runs or more after the first innings can be made to follow on, meaning they must bat a second time immediately rather than wait their turn. The fielding captain makes that call, and on this evidence the bowling side saw a clear advantage in enforcing it. Australia now have to rebuild from a position where the deficit itself becomes the first problem to solve.

For Jansen, it was a spell that underlined his value as a threat with the new ball and as a bowler who can return to take wickets when the pressure has eased. For Australia, the challenge is obvious. Their batters must find a way to resist for long periods, because a second-innings collapse would leave very little room to influence the result.

Day four has tilted the match firmly in one direction, and the next session will show whether Australia can stop the slide.