Tā de shuǐpíng hé zhuānyè xuǎnshǒu bùkětóngrì'éryǔ.
His level is in no way comparable to that of a professional player.
Tips
history
From 《战国策·赵策二》: '夫破人之与破于人也,臣人之与臣于人也,岂可同日而言之哉?' Su Qin argues to King Wuling of Zhao that conquering others and being conquered are so different they cannot even be discussed on the same day.
usage
Highlights a vast gap in quality, level, or era. Typical structure: A 和 B + 不可同日而语. A is usually the stronger / later / better one. Use the apostrophe in pinyin after 日 before the e-initial 而: bùkětóngrì'éryǔ.