Aaron Finch isn't feeling "too bad" after tweaking his hamstring in Australia's T20 World Cup victory over Ireland, but will have to wait to see if it presents any further complications.

The hosts recorded a 42-run win over their opponents in Group 1 to get their title defence back on track, with their final Super 12 game against Afghanistan later this week.

After struggling with form so far this tournament, Finch returned to his best with a stirring half-century in the first innings, only to be forced off through injury as Ireland fell short in pursuit.

"I've had a bit of a hammy twinge," Finch said. "I don't feel too bad at the moment but generally overnight it can stiffen up a bit. Let's see how it goes. [I] will have a scan tomorrow."

Having posted a total of 179-5, Finch noted that he had hoped for a larger margin of victory for his side, but says they are not feeling the pressure yet.

"[It] wasn't the easiest wicket," he added. "[It was a] lot slower than we thought it would be. They bowled well, [and it] was hard to get into rhythm.

"[But we're] not feeling the pressure at all to be honest. The support from the changing room has been incredible.

"T20 is a high-risk game. Sometimes it comes off, sometimes it doesn't. It wasn't easy to come out and go after the bowling from the start."