Jack Leach says he has "nothing to lose" after being called up for the second Ashes Test against Australia at Lord's.
Left-arm spinner Leach seems certain to start on Wednesday after replacing fellow spinner Moeen Ali in the squad following the opening defeat at Edgbaston.
"It feels like I've got nothing to lose and a lot to gain," Leach said on BBC 5 live's Sportsweek programme. "I just want to go and do my thing."
Leach's last appearance at Lord's saw him famously score 92 as a nightwatchman as England overcame a dismal first innings to beat Ireland in an Ashes warm-up.
But this week all the focus will be on his bowling as England hope he can be the man to crack Smith.
"There has been a focus on his supposed weakness against left-arm spin," he said.
"I suppose those stats are there but I've just got to – if I'm in the 11 – I've got to do my thing and bowl as well as I can and see what happens.
"It's the same for every batter. I want to get every batter out. Yes, there's Steve Smith but there's 10 other guys as well and I'll be focusing on all of them."