World No.1 Jon Rahm, Rory McIlroy, Paul Casey, Tommy Fleetwood and Viktor Hovland are mathematically certain of their place in the team, with Tyrrell Hatton, Matt Fitzpatrick and Lee Westwood also set to qualify.

However, former Open champion Shane Lowry's grip on the final automatic place is precarious, with at least a dozen players capable of shaking up the standings with a strong performance at Wentworth.

"Shane is in the hot seat, there's a number of players who can push their way into the team and a lot of points to play for this week," said Harrington, who will name his three wildcards for the 12-man team a few hours after this week's tournament finishes on Sunday.

"We wanted a bit of drama at the end and a bit of excitement, so yeah, it's going to be an interesting week."

In the unlikely event than nothing changed this week, Harrington said he does have his three wildcards in mind, with Ian Poulter and Sergio Garcia strongly fancied to take two of them, even though the Spanish veteran ignored Harrington's wish for him to play at Wentworth.

"We wanted a bit of drama at the end and a bit of excitement, so yeah, it's going to be an interesting week." - Padraig Harrington.

"I think right now I would have three in mind. I think it would be easier now ... It's the kind of drama that I was hoping (for), because that's what you need when it comes to the Ryder Cup," Harrington said.

"You have to be able to handle the stress and pressure of what's going on.

"As I've always said, the picks are not about picking the 10th, 11th and 12th-best players.

"The picks are about picking three players who complement the nine who qualify, and who match up well with those guys and bring balance to the team where it's needed."

Harrington's side will have to cope without much European support at Whistling Straits due to the coronavirus travel restrictions, but the three-time major winner can take confidence from how the Solheim Cup team triumphed in similar circumstances on Monday.

"Momentum. Inspiration. What's not to take?" he said.

"I was thrilled the way they went about it, how they did it. It definitely helps us. You want all the momentum you can get for us as the Ryder Cup team."