The Belarusian explained the reason for the action that angered her rival at the crucial moment and showed her pride in the emotional management she displayed. Competitive spirit, fighting character, and champion intangibles. That's what Aryna Sabalenka brought to the table in her intense duel against Marta Kostyuk in the quarterfinals of the 2025 Mutua Madrid Open. The Belarusian stirred up controversy by refusing to serve at 4-5 with a second ball, causing great indignation in the Ukrainian. G