Newcastle suffered a 3-1 defeat to Chelsea away from home at Stamford Bridge in the Premier League on Saturday afternoon.
The Magpies actually took the lead in the 12th minute, but the home team then launched a stirring comeback to pick up all three points from the encounter.
Newcastle legend Shearer was following the match, and he has taken to Twitter to give his reaction to the final result.
The former England international striker, who now works as a pundit for BBC Sport, has also claimed that the current Newcastle squad is Championship material, not good enough for the Premier League.
No complaints today. Effort was there but beaten by a much better team. #cfcnufc— Alan Shearer (@alanshearer) December 2, 2017
When you go shopping in Poundstretcher what do you expect?! It's a Championship squad playing in the Premier League. Whoever we picked they'd have been better than us. #gulfinclass https://t.co/nFIuJrKkLu— Alan Shearer (@alanshearer) December 2, 2017
The defeat to Chelsea means that Newcastle are now 14th in the Premier League table at the moment with 15 points from as many matches, just five points above the relegation zone.
The Magpies won automatic promotion from the Championship to the Premier League at the end of last season.