World No. 6 Paula Badosa revealed an illness forced her to retire after just 20 minutes into her Miami Masters quarterfinal against Jessica Pegula. Pegula, seeded at No. 16, had a 4-1 lead in the first set when Badosa decided to retire the match. Badosa broke Pegula in the opening game of the match but the American responded with back-to-back breaks as she won four consecutive games to take a 4-1 lead. “So sorry I had to retire today. Been struggling with illness since the last match the other day.Tried everything to recover but wasn’t enough. I’ll take some days to recover well and prepare for clay court season. Thank you,” Badosa wrote on Twitter. Badosa didn’t feel well in the round-of-16 either After …