Christchurch [New Zealand], March 4 (ANI): Australia coach Andrew McDonald is unperturbed by batter Marnus Labuschagne's recent run of low scores, saying that there are going to be "ebbs and flows" in one's Test career and the team is much more concerned about their batting line-up performing well as a collective.

The reigning ICC World Test Championship winners get set to name an unchanged XI for the second Test against New Zealand.

Labuschagne managed contributions of just one and two during Australia's emphatic 172-run triumph in the first Test against New Zealand in Wellington and the right-hander has now failed to score more than 10 in his past three Test appearances.

In four Tests this year, he has scored 144 runs at an average of 24.00, with the best of 62*.

Even the last year was tough for Marnus in the longer format, scoring 803 runs in 13 Tests and 25 innings at an average of 34.91, with a century and four half-centuries. His best score is 111.

Since his last Test century in July last year against England, Labuschagne has scored just 251 runs in seven Tests at a poor average of 20.91, with three half-centuries in 14 innings. His best score is 63.