Safin has quietly made progress at SW19

However, he should have the measure of Clement. Nobody expected too much of Safin but he's got a huge serve and he's not a bad volleyer.

Now he finds himself coming up against the better players he will need to be mentally strong.

Goran Ivanisevic (Cro) v Greg Rusedski (Gbr)

Ivanisevic: Age: 29; Seeding: n/a; World ranking: 125
Rusedski: Age: 28; Seeding: n/a; World ranking: 40

This will be a tight game but I've gone on record as saying that Greg will win it.

Greg seems to be full of confidence and belief at the moment, but this match will probably just come down to one or two points on tie-breaks.

Goran loves Wimbledon and he is a popular figure but he could find Greg is just too good for him.

Guillermo Canas (Arg) v Thomas Enqvist (Swe)

Canas: Age: 23; Seeding: n/a; World ranking: 49
Enqvist: Age: 27; Seeding: 10; World ranking: 13

These two guys should not be in the last 16 of a grass tournament, but that is what happens when you have 32 seeded players.

I expect Enqvist to come through because of his pedigree, but I haven't been particularly impressed with either of them during this tournament.

Mikhail Youzhny (Rus) v Pat Rafter (Aus)

Youzhny: Age: 19; Seeding: n/a; World ranking: 85
Rafter: Age: 28; Seeding: 3; World ranking: 10

This is a dangerous match for Rafter. I saw Youzhny beat Andy Roddick at Queens and he is an old-fashioned grass court player.

He chips and charges a lot and though he doesn't have the greatest serve he does back it up well with the rest of his play.

I would probably go for Rafter to win through but I think it could be a close game.

Lleyton Hewitt (Aus) v Nicolas Escude (Fra)

Hewitt: Age: 20; Seeding: 5; World ranking: 5
Escude: Age: 25; Seeding: 24; World ranking: 38

Lleyton Hewitt should get past Nicolas Escude

Escude is another clay court specialist who has just come this far because of a favourable draw.

But his run in the tournament should end here as Hewitt will have too much for him.

The young Australian looked a bit tired during his match on Saturday but a day off should have allowed him to recharge his batteries.

Andre Agassi (US) v Nicolas Kiefer (Ger)

Agassi: Age: 31; Seeding: 2; World ranking: 2
Kiefer: Age: 23; Seeding: 19; World ranking: 29

I just can't see how Kiefer can hurt Agassi in this match.

He doesn't have a big serve and will not be able to hit Agassi off the court. Agassi will also be good enough to beat Kiefer from the baseline.

So where is Kiefer going to get enough points to win the match? The answer is that he's not going to.