Jordan Spieth arrives at Aronimink Golf Club this week with a genuine opportunity to etch his name alongside golf's all-time greats by completing the career Grand Slam at the PGA Championship.The American, who has already claimed victories at the Masters, US Open and Open Championship, has demonstrated encouraging form heading into the tournament outside Philadelphia.Spieth has recorded five top-20 results across his previous eight appearances on tour, suggesting his game is trending in the right direction at precisely the moment he needs it most.Should he triumph, Spieth would become just the seventh player in history to win all four major championships.The 31-year-old's ball-striking has shown marked improvement this season, with his driving proving particularly impressive.His overall performance from tee to green represents his strongest showing in several years, according to analysts previewing the championship.Spieth has been working his way back from a hand injury sustained last year, dedicating considerable time to rehabilitation and swing adjustments.The missing piece of the puzzle appears to be his putting, which needs to find form if he is to contend for the title.When his putter runs hot, Spieth remains capable of challenging for any tournament he enters.Speaking ahead of the tournament, Spieth acknowledged the magnitude of what victory would represent."It would be amazing, right, because it's just a very, very short list in history," he said.The Texan also emphasised his deep connection to the PGA of America, noting that the Ryder Cup has been a significant part of his career and that his long-time instructor is a PGA of America professional."Just winning this tournament in general would be very special," Spieth added.Despite having won the other three majors, he insisted that previous contention at the PGA Championship has felt no different from other major competitions.Spieth made clear that his approach to the week would remain unchanged despite the historic opportunity before him."So as far as the career Grand Slam, this tournament's always highlighted. If I can win one more tournament in my life, it would obviously be this one for that reason," he explained.However, the three-time major winner offered an intriguing insight into his mindset."But the easiest way to do that is to not try to, in a weird way, you know," Spieth said.He noted that competing for a third consecutive week suits him well, having previously produced some of his finest golf in similar circumstances.Our Standards: The GB News Editorial Charter