One of the big debates of the summer was concerning the goalkeeping situation at Stamford Bridge, with the decision between Cech and Courtois dominating discussions.
Coming off one of the best seasons of his career, Cech was seemingly returning to the top of his game, but his competition was coming in the form of 22-year-old Courtois - named the best 'keeper in Spain for the past two seasons.
The Belgian international won the duel, being named as Jose Mourinho's first-choice for the Blues opening Premier League fixture with Burnley, and the youngster hasn't looked back since. He has appeared in every top flight fixture, only making way for Cech in the way of injury - the game against Arsenal in the Premier League - or for League Cup and Champions League ties.
Leaving Cech on the bench has made Mourinho the recipient of some criticism, and the 32-year-old Czech international was reportedly keen on leaving Stamford Bridge in the January transfer window to search for first-team football. However, he has denied such rumours, and, in the professional manner associated with him, the stopper is likely to stay as a back-up - until the summer at least.
With Cech remaining at the club, the Blues have an incredible competition in the goalkeeping positions, something that makes them the envy of many clubs, and former Blues 'keeper Carlo Cudicini believes the situation is great for the club, even if it makes the players unhappy to not be turning out on a game-by-game basis.
Quoted by the official Chelsea website, Cudicini - who was displaced by Cech in much the same manner as Courtois has displaced the 32-year-old - said: "Chelsea in the last 20 years always had good cover in the goalkeeper department and it’s very important to have that.
"There can only be one goalkeeper on the pitch and it’s a hard job for the manager to rotate a little bit because it’s not normally a position where rotation comes into it.
"But it’s very, very good for the club. There might be two goalkeepers out of the three who are not happy to be out of the team, but for the club it’s a massive thing."