The Argentina international has had to cope with being second choice behind David De Gea since joining Manchester United in 2015.
In his 18 months at Old Trafford, Romero has featured in just 18 games in all competitions but has kept 12 clean sheets.
Romero is yet to make an appearance in the Premier League this season but he has been given the opportunity in the cup competitions.
Sergio Romero wants to be starting more games at Manchester United
Jose Mourinho is yet to start Romero in a Premier League game this season
The 30-year-old played in United's 3-0 win over St Etienne in their last-32 first-leg last week and is expected to hold on to his starting spot.
And Romero hopes Jose Mourinho will give him even more opportunities from now on.
“I feel great and I’m happy to be playing," Romero told Manchester United's official website.
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Romero has had to settle with being second choice to David De Gea
"I think it’s always important to get the chance to help your team-mates on the field.
"I need to get minutes under my belt to keep my place in the national team and these games are also a mental boost for me, because they show me that I’m at the right level to play in this league as well as for the national team.
“I always have a very positive mindset. I work really hard to prepare myself for when the opportunity comes along.
"Once I get that chance, I try not to waste it. I want to show everybody that I am ready, that I want to play and am good enough to play.
“It’s also a case of wanting to prove this to myself – that’s probably my main objective.
"I approach each training session thinking that I might play at the weekend. If I end up on the bench, I’m disappointed. But when I do get my chance, I try to prove to myself and to my family that I’m up to the job."