Brendon McCullum's record against Australia was already poor; now he has become Mitchell Marsh's bunny.
The Australian all-rounder has turned McCullum into something of a walking wicket and unless the New Zealand captain can find a solution he appears set for a limp end to his international career.
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Not many bowlers in world cricket would fancy bowling to McCullum, one of the most destructive batsmen when firing, but Marsh has reason to back himself, even if he is too modest to say so publicly. So too James Pattinson, who has claimed his scalp three times in two Tests.
Since the start of the home Test series, Marsh has dismissed McCullum five times in his last nine international innings and four times in as many Tests. In fact his overall figures against McCullum this summer are a startling 5-27 from just 37 balls.
Marsh's hold on McCullum is the main reason why the retiring Black Caps star has not been able to improve on his modest numbers against Australia.
In 28 innings he has passed 50 only four times for one century, while his average against the trans-Tasman neighbour is a meagre 24.59, well down on his career mark of 38.
Marsh describes his success against McCullum as "probably coincidence", but he has claimed the Kiwi three times either bowled or lbw, which suggests a fullish length attacking the stumps will again be his modus operandi in Christchurch.
"We always have plans for every batter so it's nice when they come off and you get him out and hopefully we'll continue to do that," Marsh said.
McCullum said earlier in the week he did not believe Marsh had the consistency of the frontline quicks. Marsh, however, has come a long way with the ball since losing his place in the World Cup to Shane Watson due to concerns about his bowling.
"I'm always working with Craig McDermott to improve and that's probably been the biggest thing for me, just the consistency," Marsh said.
"It's all about at certain times when, as the all-rounder and as the fourth seamer, you can attack but it's also about doing a role for the team and holding up an end and bowling in partnerships with the strike bowlers."
As the team's No.6, Marsh's strong suit is expected to be his batting but he accepts an average of 23 from 14 Tests is "not great". His only half-century came in his second Test.
His strong form against the white ball has fuelled hope it is only a matter of time before it translates into the Test arena.
"The frustrating part for me is at this level even if your team is doing well you're judged on your numbers and I understand that," Marsh said.
"The hardest part for me is we're doing well as a team but at the top level you have to be performing and contributing in a big way to keep your spot.
"My record with the bat is not great over the last 12 months but I've still got great confidence that I can turn it around and start scoring big runs for Australia."