The text shown in the image is:
However, at 34 years of age and with his future in international cricket on uncertain ground as it’s, any setback is bad news for the Australian all-rounder at this late stage of his career and Watson faces a nervous wait for the results of scans. (Source)
What is 'it' as shown in the image , clear from the title. Also it is not 'its', that should be noted well.
If the "as it's" is a typo for "as it is", then we can consider the "it" to be semantically empty. This kind of "it" is sometimes called a dummy or expletive pronoun.
The phrase "as it is" can be used as an idiom with a meaning close to "under current circumstances" or "in this situation". In that case, the "it" doesn't refer to anything. The same lack of semantic value can be found in the sentence "it is raining" -- there is no "it" which rains, but the predicate still requires a subject.
Watson's future doesn't look good now. His future will look even worse if his scan results contain bad news.
When "it is" stands as a complete clause, it should not be contracted. The "as it's" in your example must be a typo of something. Replacing the typo with "as it is" makes more sense than replacing it with "as its". The idiomatic "as it is" doesn't require an antecedent, and I cannot find a suitable antecedent for "as its" in this sentence.
I find "its" as a possessive pronoun here (like "mine" or "hers") hard to accept. The OED lists the pronominal use of "its" as "rare"; and I can't search for it in the corpora, because the UCREL Claws7 part-of-speech list doesn't have a category for it. ('PPGE' is "nominal possessive personal pronoun (e.g. mine, yours)", but doesn't match "its"; whereas 'APPGE' ("possessive pronoun, pre-nominal (e.g. my, your, our)") does match 'its'.
I think "it is" is a far more likely reading.
I believe that it's refers to uncertain ground, and the meaning is:
...on uncertain (as of now) ground
or, in a more meaningful way,
...on currently uncertain ground
