Manchester United boss Sir Alex Ferguson wants his side to be
more clinical in their Champions League decider against Benfica on
Wednesday.
United faltered in their games against FC Copenhagen and Celtic and
still need a point from their final Group F match at Old Trafford
to go through.
He told the club website: "It won't be an easy game but as long as
we remember to finish teams off we will be OK.
"That's going to be an issue, when we get chances we've got to take
them."
Ferguson added: "This is a game you can't trifle with. It's too
important for us. If we get chances we have to take them, but I
think we've got a chance."
Last season, Benfica eliminated Liverpool before losing to eventual
winners Barcelona in the quarter-finals.
United failled to qualify for the knockout stages last season and
finished bottom of the group after losing to the Portuguese
champions.
Defender Rio Ferdinand is confident United can raise their game for
the decisive tie at Old Trafford but echoed his manager's warning
over the forwards' finishing.
He said: "The big games - when people are asking questions about us
or think we won't do well - we seem to come through it. This is an
opportunity to do that again.
"In the Champions League, you must kill games off when you are on
top - because the other teams always have that quality and ability
to put the ball in the back of the net."
Benfica coach Fernando Santos believes his side are capable of
causing an upset against United for the second successive
season.
He said: "The match against Manchester United is a real final for
us.
"We believe victory is possible and trust we will also have a bit
of luck.
"Qualifying is very open because United are not as strong in recent
weeks as they have been."