bù​pà​shén​yī​yàng​de​duì​shǒu, jiù​pà​zhū​yī​yàng​de​duì​yǒu

incompetent teammate

不怕神一样的对手,就怕猪一样的队友 (不怕神一樣的對手,就怕豬一樣的隊友) bù​pà​shén​yī​yàng​de​duì​shǒu, jiù​pà​zhū​yī​yàng​de​duì​yǒu
incompetent teammate
A boneheaded teammate can do you more harm than the most formidable opponent.

Sources

Definitions
CC-CEDICT