Fernando Torres underwent tests at a Liverpool hospital on Thurdsay on the serious groin injury which is threatening to ruin his season.[LNB]The Spain striker played 87 minutes of Liverpool's 1-1 Champions League draw with Lyon on Wednesday, a result which virtually ends their hopes of progress from Group E into the last 16.[LNB]Torres played with pain throughout the match, before flying back with the Liverpool party on Thursday morning.[LNB]Later on Thursday he attended a Liverpool hospital where more tests were carried out on his injury.[LNB]Manager Rafael Benitez fears that Torres will eventually need an operation on what he describes as a "poor man's hernia."[LNB]However, Liverpool are loathe to go down that route until every other avenue has been explored.