"We obviously do a lot of finishing - it is something I work on a lot, having been a forward," says Paul.
"Fredi has trained more this year, they tell me, than he has done in previous years - but unfortunately has picked up these niggly hamstrings and then the thigh injury."
But there is no decision just yet as to whether he will play on Saturday - and Paul says it's no good asking the man himself!
"He is quite a tough one; he gives you the same impression most days, saying 'I feel fine.'
"But we have got a real stretch of games coming up, and we can't afford to take any chances, so we will just have to see how the week pans out, really.
"We couldn't afford to risk him for the second half on Saturday even though up front is one area where we do have a few options.
"It is disappointing for us and him when he is out because he is very important, as you can see by the incredible return on points and goals when he plays.
"Fredi gave us another dimension and when we are firing on all cylinders we can compete with the best and beat anybody."
Of the Arsenal match in general, he says:
"I thought it was a cracking game of football played at a very high pace and the first half was exceptional.
"I thought we were very good before the break but couldn't hold on to the lead very long after Fredi got the goal.
"In the second half we became a little more cagey and just about edged possession, though they had the best opportunity when Bergkamp hit the bar.
"But we felt we had a definite penalty in the last minute when Vieira handballed in the box, so it could have gone either way and it was a good draw in the end."
Arsene Wenger was moved to say of the game:
"It was a good West Ham side and in the first half especially they pinned us back; we needed a lot of strength to get back.
"They are a very good side technically, and showed a good fighting spirit."
Paul adds:
"It didn't need a rocket scientist to work out that we gave them a tough game, and with that 11 playing we are certainly a formidable side."
Paul is hoping the momentum continues as the Hammers look for four games on the trot without defeat for the first time this season, and he concludes:
"The mood in the camp has been very positive in the last two or three weeks since the Villa game; you gain a lot of strength when you play these top teams and play as well as we have done.
"Now we have got a couple of games that are different in many ways, but as important, if not more important, than the last two."