Complex sentence: Granollers' good serve and net skills account for his excellent doubles record, while his comparatively technically weak groundstrokes are underpowered, with low takebacks on both wings, which provide a decent defensive framework.
Split into simpler sentences: Granollers' good serve and net skills account for his excellent doubles record. His comparatively technically weak groundstrokes are underpowered with low takebacks on both wings but they provide a decent defensive framework.