France's Gael Monfils and Spain's David Ferrer are just one win away from an all-Top 20 final showdown at the SA Tennis Open, after they both won quarter-final matches in straight sets.

On Saturday they play their semi-finals against very different opponents. No. 1 seed Monfils faces No. 3 seed Feliciano Lopez, who has been to this stage of ATP World Tour events many times (including making five finals); No. 2 seed Ferrer takes on No. 8 seed Stephane Robert, who is playing an ATP World Tour-level semi-final for the first time - in fact, he had never even been to a quarter-final before this week.

World No. 13 Monfils and World No. 18 Ferrer have both made it this far without even losing a set; Lopez and Robert have each been pushed to three sets once.

SATURDAY SEMI-FINAL HEAD-TO-HEADS

(1) Gael Monfils (FRA) vs (8) Feliciano Lopez (ESP) First Meeting

Monfils FastFacts:
2010 Highlights:
SF: Brisbane (l Stepanek)
YTD W-L: 8-2
YTD Titles: 0
Career Titles: 2
Date of Birth: September 1, 1986
South African Airways 2010 ATP Ranking: 13

* Monfils, 23, is playing his third ATP World Tour main draw of the year, reaching the SFs at Brisbane (l. to Stepanek) and 3rd Rd. at the Australian Open (l. to Isner in four sets)
* Has a 3-0 career record in Johannesburg, reaching SF this year (d. Hrbaty in 1st Rd., Ouanna in 2nd Rd. and No. 7 seed Lu in QF)
* 2009 was second straight Top 15 season, highlighted by winning second ATP World Tour title at Metz and runner-up finishes at Acapulco (l. to Almagro) and Paris (first Masters 1000 final; l. to Djokovic); also spent first 14 weeks inside Top 10 (peaking at No. 9 for four weeks)
* Career-high ranking is No. 9 (reached on March 2, 2009)

Lopez FastFacts:
2010 Highlights:
YTD W-L: 5-2
YTD Titles: 0
Career Titles: 1
Date of Birth: September 20, 1981
South African Airways 2010 ATP Ranking: 39

* Lopez, 28, is playing his third ATP World Tour main draw of the year, falling 1st Rd. at Sydney (l. to Gasquet) and reaching 3rd Rd. at Australian Open (l. to Roddick in four sets)
* Has a 3-0 career record in Johannesburg, reaching SF this year (d. qualifier Balleret in 1st Rd., Kavcic in 2nd Rd. and No. 5 seed Ram in QF)
* 2009 was sixth Top 50 season in last seven years, best results being SF at Shanghai (ret. vs. Nadal w/right ankle sprain) and QFs at Vienna (l. to Cilic) and Marseille (l. to Tsonga)
* Career-high ranking is No. 20 (reached January 31, 2005)

(8) Stephane Robert (FRA) vs (2) David Ferrer (ESP) First Meeting

Robert FastFacts:
2010 Highlights:
YTD W-L: 5-2
YTD Titles: 0
Career Titles: 0
Date of Birth: May 17, 1980
South African Airways 2010 ATP Ranking: 100

* Robert, 29, is playing his third ATP World Tour main draw of the year, reaching 2nd Rd. at Chennai (l. to Berrer) and Australian Open (l. to Montanes in five sets - was up two sets to love)
* Has a 3-0 career record in Johannesburg, reaching SF this year (d. Evans in 1st Rd., WC Van der Merwe in 2nd Rd. and Brown in QF)
* Had never reached an ATP World Tour QF before this week
* Career-high ranking is No. 100 (achieved this week)

Ferrer FastFacts:
2010 Highlights:
YTD W-L: 4-2
YTD Titles: 0
Career Titles: 7
Date of Birth: April 2, 1982
South African Airways 2010 ATP Ranking: 18

* Ferrer, 27, is playing his third ATP World Tour main draw of the year, reaching 2nd Rd. at Auckland (l. to Clement) and Australian Open (l. to Baghdatis in five sets - was up two sets to love)
* Has a 6-1 career record in Johannesburg, reaching SF last year (l. to Chardy in third set tie-break) and SF this year (d. Beck in 1st Rd., Prpic in 2nd Rd. and Devvarman in QF)
* 2009 was fifth straight Top 20 season, highlighted by runner-up finishes at Dubai (l. to Djokovic) and Barcelona (l. to Nadal); was only player in year-end Top 20 without an ATP World Tour title
* Career-high ranking is No. 4 (reached on February 25, 2008)

POTENTIAL FINAL HEAD-TO-HEADS

Gael Monfils (FRA) vs Stephane Robert (FRA) First Meeting

Gael Monfils (FRA) vs David Ferrer (ESP) Monfils Leads 1-0
08 Roland Garros (France) Clay QF Gael Monfils 6-3 3-6 6-3 6-1

Feliciano Lopez (ESP) vs Stephane Robert (FRA) First Meeting

Feliciano Lopez (ESP) vs David Ferrer (ESP) Lopez Leads 6-3
05 New Haven (USA) Hard SF Feliciano Lopez 4-6 6-3 6-2
06 ATP Masters Series Hamburg  Clay R64 David Ferrer 6-4 6-2
06 Stockholm (Sweden) Hard R16 Feliciano Lopez 3-6 6-3 6-2
07 Tokyo (Japan) Hard QF David Ferrer 6-4 6-4
07 ATP Masters Series Madrid (Spain) Hard R32 Feliciano Lopez 7-6(3) 7-5
08 Dubai (UAE) Hard QF Feliciano Lopez 6-4 6-3
08 ATP Masters Series Madrid (Spain) Hard R32 Feliciano Lopez 6-4 7-6(4)
09 ATP Masters 1000 Monte Carlo  Clay R64 David Ferrer 6-2 6-3
09 ATP Masters 1000 Shanghai (China) Hard R32 Feliciano Lopez 4-6 7-5 6-1