Marnus Labuschagne, once a stalwart in Australia's batting lineup, is now facing one of the toughest phases of his international career. As he prepares for the second Test in Adelaide, his long-time batting mentor, Neil D'Costa, has advised him to ease off on intense training and adopt a more flexible mindset in his game strategy.

Labuschagne's recent performances have placed him under the microscope, with his struggles at the Optus Stadium being particularly concerning. In the first innings, he managed just 2 runs off 52 balls before being clean-bowled by a straightforward delivery from India's Mohammed Siraj. The second innings saw another lapse in judgment as he misjudged a delivery from Jasprit Bumrah, which shattered the stumps.

These recent outings have added to a worrying trend for Labuschagne. In his last 10 Test innings, he has accumulated only 123 runs, with a significant portion—90 runs—coming in a single innings against New Zealand in March. His overall Test average for the year has dipped to 24.50, a stark contrast to his previous years where he often averaged above 60.

Despite these challenges, Labuschagne's dedication to the sport is evident. He was back in the nets immediately after the conclusion of the first Test in Perth, striving to rediscover his form. The Australian squad is set to regroup in Adelaide a day earlier than planned, providing Labuschagne crucial time to refine his approach.

Neil D'Costa, speaking to ESPNcricinfo, emphasized the importance of adjusting Labuschagne's training regimen. "I'd probably just half what he usually does. Just try and clear it up a bit," D'Costa suggested. "Keep working on reacting more, not having such rigid plans. Every batter goes through this. Almost everyone around 30 years old, don't know why it's that number, seems to have this glitch. He's a guy we all know, he loves playing cricket. He never leaves a stone unturned."

Labuschagne's current form is a concern not just for himself but for the Australian team as a whole, as their top order has been underperforming. As Australia aims to regain its footing in the Test series, Labuschagne's return to form could be pivotal.

As cricket enthusiasts and analysts keenly observe his progress, Labuschagne's response in Adelaide will be crucial in determining both his and the team's trajectory in the ongoing series.