Frank de Boer believes his Ajax players can handle the pressure during their title run-in as they prepare to face Groningen in the Eredivisie on Sunday. The Amsterdam giants are now six points clear at the top after second-placed AZ lost to PSV last weekend, and he has confidence that, with only four games remaining, they will win the title.

"We only need to keep doing what we have been doing for the last few weeks," he told the club's official website. "I think that Ajax knows how to deal with pressure. We are the most successful club and also have the biggest budget in Holland."

The former Netherlands international led his boyhood club to the championship last season and has always taken his experience as a player into his management career.

He said: "We must always win - a draw is a loss. I know what it is to have to perform as a player and I'm afraid of nobody. This is perhaps my advantage. I've always played at clubs who always had to win. Whether at Rangers, Galatasaray, Barcelona or Ajax."

Groningen face a stern test in Amsterdam having lost four out of their last five league matches.

Guidetti backs Feyenoord for second
AZ are also in action on Sunday as they face relegation-threatened VVV looking to stay on the coat-tails of the league leaders.

In-form Feyenoord could move above AZ as they face ADO Den Haag earlier in the day. Ronald Koeman's side have won four out of their last five, only dropping points following a draw at Roda JC.

On-loan Manchester City striker John Guidetti has scored 20 goals in 23 league appearances so far this season, and Koeman will be boosted by the knowledge the Sweden international is fit following a bout of flu during the week and he is aiming for a strong finish to the season.

"We now just have to win everything, then we are second and we participate in the qualifying round of the Champions League," Guidetti said. "Of course I believe we can - we have it in our own hands."

Den Haag were narrowly beaten by Vitesse last weekend but still remain seven points clear of the bottom three.

Despite their win over AZ, PSV are currently fifth in the table and they also play on Sunday as they host mid-table NEC Nijmegen.

Relegation worries
Excelsior and De Graafschap have been cut adrift at the foot of the table but both sides will still be looking to avoid finishing bottom of the table and instead enter the promotion/relegation play-offs with both in action on Saturday.

De Graafschap are currently second-bottom and host 11th-placed Heracles Almelo while Champions League-chasing FC Twente are the visitors to bottom side Excelsior, who are a point behind De Graafschap.

Saturday's other fixtures see Vitesse Arnhem travel to Heerenveen and RKC play Utrecht, while NAC and Roda JC meet on Friday evening.