Sinan Pasha and Dragut collaborated on several naval expeditions in the Mediterranean Sea, particularly on the coasts of Italy and North Africa.

Sinan was not an expert on naval issues as much as Turgut Reis, who was a more popular commander among the admirals and captains of the navy, and this often caused conflict between the two.

There are conflicting descriptions about Sinan Pasha's character, the majority say that he was tall and smart with a long beard and a cold gaze.

The Ottoman historian Peçevî wrote that "Sinan Pasha was a proud and megalomaniac man who would not listen to the opinions and complaints of others.

However, Spanish historians of that period wrote that "Sinan Pasha was a tall and strong man with a truly handsome face and a gallant heart.