His diligence has earned him a high level of respect from his peers and clients, and he has a long history of achieving substantial results against some of the most formidable opponents. (javerbaumwurgaft.com)
You are going up against formidable opponents, and you must be prepared or you will be eaten alive. (slaw.ca)
The two proved formidable opponents with the election too close to call on election night. (suffolktimes.timesreview.com)