 Nyorai kuenderera mberi kweiyi ndima - Muna 2003, Mussina aive wechitatu muligi mukurova 9 IP 8.18 uye kurova kufamba chiyero 4.88, wechina mukurova 195 uye kufamba 9 IP 1.68, wechishanu mukukunda 17, uye wechisere muERA 3.40. Akachengeta varovi paavhareji ye.190 apo pakanga pane zviviri zvaibviswa uye vamhanyi vari munzvimbo dzokupinza zvibodzwa. Mukati meMutambo 7 we2003 ALCS, Mussina akanyora imwe yenziyo dzakakura zvikurusa dzokukanda dzenguva dzose. NeYankees ichitevera Boston 40, Mussina akaita kuoneka kwekutanga kwebasa rake. Nevanomhanya vari pamakona uye pasina anobuda, Mussina akarova Jason Varitek asati aita kuti Johnny Damon arove kaviri. Mussina akaenderera mberi achikanda mamwe ma2 innings asina zvibodzwa uye akachengeta maYankees ari padanho rinoshamisa mumutambo wavakazodzoka kuzokunda. 