De Villiers currently sits on top of the ICC 's ODI batting rankings .
Is the No. 2 Test batsman behind England 's Joe Root , but has slipped to No. 44 in the Twenty20 rankings .
De Villiers currently sits on top of the ICC 's ODI batting rankings and is the No. 2 Test batsman behind England 's Joe Root , but has slipped to No. 44 in the Twenty20 rankings .