Pakistan were 168 for four at the close, a lead of 90 runs, with Younis unbeaten on 76.
Younis and fellow veteran, captain Misbah-ul-Haq, ground out a fourth-wicket stand of 116 after their side, who trailed by 78 runs after the first innings, slipped to 23 for three against Zimbabwe’s new ball bowlers Tinashe Panyangara and Tendai Chatara.
They will aim to take their side to a total which will give off-spinner Saeed Ajmal a chance of bowling Zimbabwe out.
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