Harbhajan Singh, 38, and Imran Tahir, 40, have proved that age is just a number, feels Chennai Super Kings captain Mahendra Singh Dhoni, equating the spinners with fine wine for the way they have matured.

The inspirational CSK skipper, himself 37, was effusive in his praise for the duo after CSK's seven-wicket win over Kolkata Knight Riders here on Tuesday. Harbhajan (2-15) and Tahir (2-21) were the key performers for the home team.