Complex sentence: The matches will follow a T20I match played between Sri Lanka and Pakistan, also in Lahore, and will be the first tour of more than one match against another Test nation since Zimbabwe toured in May 2015.
Split into simpler sentences: The matches will follow a T20I match played between Sri Lanka and Pakistan, also in Lahore. It will be the first tour in Pakistan of more than one match against another Test nation since Zimbabwe toured in May 2015.