The former world No 1 also discussed the nature of trialling multiple coaches, saying: "It's something in the past I wish I had done more of. I think tennis players generally don't do a great job of trialling multiple coaches, testing at tournaments and training weeks. Due to the nature of the tour it's always quite difficult to do that, so Esteban is here this week to see how it goes. As Sinfield set off on his second leg, his giveasyoulive page reached just short of £200,000 in donations and is adamant that, despite a lack of sleep, he will complete the challenge. Not only are they presiding over a golden era in Welsh darts, they are also inspiring a generation of new talent, and as the duo prepare to defend their crown in Jena this weekend, their determination to create further history is unwavering. The Putney-based left-hander secured a top-20 place and the ranking as Britain's new No 1 - moving past Dan Evans - with his career-affirming run to title glory in the California desert.