Former world No. 1 Kim Clijsters appeared to throw shade at Emma Raducanu while reflecting on Iga Swiatek’s rise to the No. 1 ranking. Raducanu, 19, put up a stunning run at Flushing Meadows to win her first Grand Slam title at the US Open but has since struggled with her game and consistency. On the other side, Swiatek has made a great start to the new season as she has won won titles and also made two semifinals in Australia. “To see Iga grow as a tennis player, it has been so beautiful for me,” Clijsters told the WTA Tour website.“There’s a certain type of focus that is on tennis, and tennis only. There’s a drive there that I admire very much – a drive that I recognize. “She’s had great results in the pas …