Former Indian off-spinner Ravichandran Ashwin revealed about urging several IPL teams to pick Aussie big-hitter Tim David ahead of the IPL 2025 auction. However, he said many rejected the same, mentioning the drop-off in David's batting prowess.Yet, the Royal Challengers Bengaluru (RCB) acquired the 29-year-old for only ₹3 crore at the mega auction. David has not looked back since, becoming arguably the best T20 batter in world cricket.The tall right-hander helped RCB win their maiden IPL title with several late cameos. He finished with 187 runs at an average of 62.33 and a strike rate of 185.14. David has continued his blistering form in T20Is, with a century and two half-centuries in his last four innings against the West Indies and South Africa.Talking about the RCB star's transformation on his YouTube channel, Ashwin said (2:15):"I shouldn't say this but I told the decision makers of a few IPL teams to pick him before the last auction. They all said, 'No, his game has dropped off drastically '. I believe the future of T20 cricket is going to be having tall batters with long lovers and strong build. They are going to rule the roost if there are no changes brought to the wide line."He added:"A player RCB picked up at base price (₹3 crore) has taken his game to the next level. It's good to see Australia sending him up the order. A real steal for RCB."David scored a breathtaking 83 off 52 deliveries to help Australia post 178 from 75/6 in the first T20I of the ongoing home series against South Africa. Following that match-winning performance, he was the lone warrior in the second T20I, with 50 off 24 balls. However, the hosts lost the contest by 53 runs."South Africa and Australia will be the two teams who'll challenge India" - Ravichandran AshwinRavichandran Ashwin further picked South Africa and Australia as the biggest challengers to India in their T20 World Cup defense at home next year. The T20I series between the two teams stands at 1-1, with the decider to be played at Cairns on Saturday, August 16."Daniel Vettori, along with Travis Head, has transformed Australia's approach in T20 similar to that of SRH. I feel South Africa and Australia will be the two teams who'll challenge India the most in next year's T20 World Cup," said Ashwin (via the aforementioned source).The Proteas' win in the second T20I broke Australia's incredible nine-game winning streak in the format. Meanwhile, India are the defending T20 World Champions, having won the title in the West Indies and the USA last year.