Federer began to turn the tide at the Masters Cup in 2003, when he defeated Agassi in both the round-robin and the final.
fˈɛdɚɹɚ bɪɡˈæn tə tˈɜːn ðə tˈaɪd æt ðə mˈæstɚz kˈʌp ɪn tˈuː θˈaʊzənd θɹˈiː, wˌɛn hiː dᵻfˈiːɾᵻd ˈæɡæsi ɪn bˈoʊθ ðə ɹˈaʊndɹˈɑːbɪn ænd ðə fˈaɪnəl.