The Premier League side face Reading for a place in the quarter-final of the competition.
Tony Pulis' men face Championship side Reading for a place in the last eight of the competition, having already knocked out Bristol City and Peterborough - though they were taken to replays against both, and needed a penalty shootout to overcome the League One side in the previous round - and Sandro thinks that they could be contenders for the trophy.
"It's a good feeling and the supporters love it, it's great for the club," he told the Mail.
"I haven't won anything in England so this is a good opportunity for me to win a trophy.
"If we win then we come closer to the final. Everyone loves this cup, we have a good team and I'm waiting to see how the game goes and hopefully we can play well, win and go through."
Although the previous rounds have shown that Football League sides have the capabilities to cause West Brom problems, they will surely go into the game at the Madejski Stadium as favourites.
Pulis' side are coming in off the back of a promising away victory over Everton, while the Royals are without a win in their last six games in the Championship, and have not scored in their last two.
And while Pulis will be desperate to ensure that his team do not assume that their name is already in the hat for the next round, the fact that there are three ties out of eight that pit two Premier League sides against each other guarantees that at least a trio of top flight teams will exit the competition.
And if West Brom get another good draw, they may feel their path to the semi-final has become clearer, and perhaps begin to seriously dream about lifting the trophy for a sixth time.