sentences:  With regular left backs Andrew Taylor and Emanuel Pogatetz injured, Grounds made his first-team debut on 12 January 2008 in a 1–1 Premier League draw at home to Liverpool.After impressing both as captain of Middlesbrough's reserve team and in further appearances for the first team, he was rewarded with a new two-year contract in March.According to manager Gareth Southgate, "We didn't expect him to progress this quickly but he got into the first team and did very well, showing he has the right character and the mentality to cope with the big occasion."