Bengaluru: Indian Team Director Ravi Shastri today said that South Africa are still a formidable side despite the retirement of some big players recently but his side will continue their aggressive brand of cricket in the upcoming series beginning on October 2.

"It is like asking me about Indian team without (Sachin) Tendulkar, VVS Laxman, Anil Kumble - players will come and go, but you got to respect the fact that SA are world number one side," Shastri said at a press conference when asked about the visiting side who are coming without the likes of retired Jacques Kallis.