Its vital Sigurdsson plays in that number 10 role, where he has been so effective all season - the Icelandic global has eight goals and 11 assists in 32 Premier League games so far this season, and if he is to add to that total its essential he plays in that attacking midfield role where he is able to dictate play.
Clement's side have now picked up just a single point from the last five league games, dropping into the relegation zone with just six games remaining.
Unfortunately, that is Watford's only win in the two sides' last seven encounters - with Swansea earning a 0-0 draw at the Liberty Stadium this season, and beating the Hornets 1-0 at home last season.
Gomes was less assured minutes later as he came to punch away Sigurdsson's cross but only as far as Federico Fernandez's head and with the former Spurs goalie scrambling to get back the Swansea player's header scraped the bar.
"As we sit here and speak about it, the fight is between us and Hull", Clement said.
Now with six games left, and both Hull and Crystal Palace in fine form, they're going to find it incredibly hard to escape the drop, however, it isn't impossible. "Mathematically, if we won every game and they won every game, they are going to stay up and we are not", he added. But the likelihood of that happening is actually very unlikely based on where the teams are in the league. And the fact is, though they have beaten Chelsea and Arsenal, they still have a hard run-in.
"We can't focus on anyone else or anything else. You can take your eye off the ball if you do and not deal with what you actually have a bit of control of, your own performances".
Capoue was one of the surprise stars of the opening period of the season.
Watford have continued their recent impressive form with a 1-0 victory over Swansea City in the Premier League.
"I believe we can win three out of five games, we have won four out of six".
Although Watford applied most of the early pressure, it was Swansea who created the game's first chance, Sigurdsson latching on to a Luciano Narsingh cross and unleashing a close-range effort that Heurelho Gomes did well to keep out.