Jasprit Bumrah's bowling has had a significant impact on Usman Khawaja's performance in the recent Border-Gavaskar Trophy series:

Dismissals and Average: Bumrah dismissed Khawaja six times across eight innings where they faced each other, with Khawaja scoring only 33 runs off 112 balls against Bumrah, resulting in a dismal batting average of 5.50. This is a stark contrast to Khawaja's overall performance in the series, where he scored 143 runs in nine innings, averaging 17.87.
Khawaja's Assessment: Khawaja himself has described facing Bumrah as the toughest challenge he's encountered in his cricketing career. He admitted to being "Bumrah-ed," indicating that Bumrah's bowling was a significant obstacle to his scoring, making it extremely difficult for him to score runs or even get off strike. Khawaja noted that Bumrah's maturity, understanding of his skills, and tailored plans for different batsmen made him particularly hard to bat against.
Impact of Bumrah's Absence: The series also highlighted how Bumrah's absence due to injury affected the dynamics. In the Sydney Test, where Bumrah missed bowling in the final innings because of a back spasm, Khawaja was relieved, stating it would have been a "nightmare" to face him on that particular wicket. This absence was seen as a relief by several Australian players, suggesting Bumrah's presence significantly alters the game's outcome, especially against key batsmen like Khawaja.

Strategic Impact: Khawaja's struggle against Bumrah was not just about individual matchups but also had strategic implications. For instance, posts on X (formerly Twitter) suggest that when other Australian players like Sam Konstas took an aggressive approach, it influenced Bumrah's lengths, which coincided with Khawaja's only significant score in the series. This shows how Bumrah's effectiveness can change the batting strategies of even experienced players like Khawaja.
Statistical Comparison: Khawaja's performance statistics against India outside of facing Bumrah illustrate a marked difference. For example, in one innings against Sri Lanka, Khawaja scored 232 runs, suggesting that his form issues were predominantly due to facing Bumrah rather than a general lack of form.

In summary, Jasprit Bumrah's bowling in the recent series has been pivotal in limiting Usman Khawaja's scoring, making him one of the most challenging bowlers Khawaja has faced, and significantly impacting his overall series performance.