Evaluating a player's ability to handle left-handed opponents involves analyzing their tactical adaptability, footwork, and comfort with different angles and spins that lefties typically produce. Observing their performance in matches against left-handed players, particularly in terms of shot selection, timing, and positioning, provides insight into their responsiveness to unfamiliar gameplay styles. Important metrics to consider include their success rate when facing left-handers, any recurring struggles with specific shots, and their overall strategic adjustments during these encounters. Additionally, psychological factors such as confidence and mental resilience in adapting to left-handed opponents can also significantly impact a player's effectiveness.