"They are my team-mates for my country but my job is to stop Inter Milan's players," said the midfielder.
"When I play for Liverpool, I don't have any friends in the opposing side.
"When I go out on to the pitch, when I get my mind into playing mode, I forget about everything except winning.
"If that means getting myself between the ball and people who are friends off the pitch, then that is just the way it is."