Trik upgrade pemain FO3

Langsung aja yah gan.Cara upgradenya pakai sistem tumbal.
Ke +3 pakai tumbal +2 + +1, 1 x gagal berturut
Ke +4 Pakai tumbal +3 + +1, 2 x gagal berturut
Ke +5 pakai tumbal +4 + +2, 2 x gagal berturut
Nih gan videonya

Atau klik How to upgrade player FIFA Online 3 (from +1 to +5 upgrade)