1991 Geneva Open
The 1991 Geneva Open was a men's tennis tournament played on clay courts that was part of the World Series of the 1991 ATP Tour . 
<triplet> 1991 Geneva Open <subj> 1991 <obj> point in time <subj> tennis <obj> sport <subj> 1991 <obj> point in time <triplet> clay court <subj> tennis <obj> sport <triplet> World Series <subj> tennis <obj> sport <triplet> 1991 ATP Tour <subj> 1991 <obj> point in time <subj> tennis <obj> sport <subj> 1991 <obj> point in time