Student or Learner
I always find it difficult to understand sports articles. The following is the sentence that I met.
"But it got worse for Newcastle when Joey Barton was sent off for a dodgy tackle on Alonso, leaving Lucas Leiva to head in a third to seal the win."
Is "head" a noun or a verb? And does "a third" indicate a position or time?
Here it's used as a phrasal verb. To "head in" a ball means to head it into the net. Leiva hit the ball into the net with his head for a third goal, ensuring that that they won.