The double strike killed off the match as a competitive spectacle, although Jermaine Pennant flashed in a couple of long-range free-kicks to give Birmingham some hope.

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Trott's 102 from 126 balls - a strike rate of 80 - contained six boundaries, compared with his unbeaten 84 in the previous match which featured only three fours and a strike rate of 70.

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The Buddies came back into the match with a fine strike from distance then a late solo effort to give the visitors all three points.

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But with Herath gritting it out at the other end, McKenzie took charge, dominating the strike and hitting two sixes over square leg off Adams, before a third sealed the match.

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Pompey started the match brightly and Ciftci's early strike - which came after he took a short corner from the right to Matt Ritchie before getting the ball back and beating Royals goalkeeper Adam Federici with a right-footed drive - was deserved.

BBC: Sport - Football - Portsmouth 1-1 Reading