Once again, Errol Spence Jr and Terence Crawford have agreed to fight. Once again, fans are crossing their fingers. The problem is that other key figures in this deal, of anxious dispositions and with sweaty hands hidden behind their backs, may be doing the same. Spence vs Crawford, or Crawford vs Spence, has proven to be one of the most elusive fights of a generation. Two champions, both alike in stature, in unfair America, where we lay our scene, a pair of star-crossed southpaws take this bout... yet they have done so before, and still the contest eluded the sport’s devotees. It is a bout that was first discussed in 2018, perhaps earlier, and one that seemed to be within grasp last autumn. Terms were agreed, fans were told, over a November meeting between the welterweight champions – both unbeaten and both undeterred by the prospect of losing their gold or records. Because that is the problem. In these situations, it is rarely the fault of the competitors that these bouts fall through; it is never a fear from the fighters that derails negotiations. Pride, perhaps, plays a decisive and often disappointing role, but not fear. That is for the men in suits, not those wearing 8oz gloves. That is why, when news emerged on Wednesday that unified champion Spence (28-0, 22 knockouts) and WBO champion Crawford (39-0, 30 KOs) had agreed terms over a 29 July clash in Las Vegas, excitement was premature. It was, and is, understandable, but premature nevertheless. When Spence, 33, and Crawford, 35, agreed terms last year, the latter instead went on to box David Avanesyan, stopping the Armenian in December. Meanwhile, Spence has not fought since a TKO win over Yordenis Ugas 13 months ago. Both Spence and Crawford have struggled for activity in recent times, and both are slowly approaching the end of their primes. There is, of course, reason to hope – a few reasons, in fact. Over the course of the last month, we have seen two match-ups to satisfy boxing purists and suck in casual viewers, and neither fight should be taken for granted. In April, after years of baying from fans and the fighters themselves, lightweights Ryan Garcia and Gervonta “Tank” Davis squared off in a catchweight contest. Last week, Devin Haney defended his undisputed lightweight titles against former unified champion Vasiliy Lomachenko in a dynamic contest with a dramatic conclusion. All the while, the heavyweights are held up, and the obstructive factors in negotiations between Tyson Fury and Oleksandr Usyk are pointers as to why Spence-Crawford will not be ‘on’ until the first bell rings. In the case of Fury and Usyk, a purse split (unfair as it was on the Ukrainian) was agreed, as was a rematch clause, only for the deal to dissolve due to a different dispute: one around the purse split in the rematch clause​. It would have been funny, had it not been so farcical. Errol Spence Jr Terence Crawford Age 32 35 Record 28-0 (22 KOs) 39-0 (30 KOs) Stance Southpaw Southpaw Titles WBC, WBA, IBF welterweight belts WBO welterweight belt (Formerly WBO lightweight belt; WBC, WBO, WBA [Super], IBF light-welterweight belts) Notable wins Shawn Porter, Mikey Garcia, Carlos Ocampo, Kell Brook Shawn Porter, Jose Benavidez Jr, Kell Brook, Amir Khan So, with reports suggesting that this Spence-Crawford deal contains a rematch clause for both fighters, and that a trilogy is likely in the case of a 1-1 scoreline by the end of 2023, there is reason for hesitancy. Such a deal contains enough moving parts to concern even the most enraptured observer. The prospect of a trilogy also threatens to hold up the division, though if the fights deliver in the way that fans have long hoped, few will mind besides any stranded contenders themselves. The point here is not to suggest that Spence-Crawford will not in fact come to pass; as of this week, it looks likelier than ever that the Americans will share a ring at long last. Last year, Spence shared a cartoon of himself imagined as a shark, knocking on the locker room door of Crawford; on Wednesday, Crawford shared an illustration of himself as a god of the tides, carrying a shark on his trident. An official announcement may even be impending. However, boxing fans have been burnt enough times that they should exercise caution until the moment the bell rings, and one of the most-anticipated fights of a generation finally begins. Click here to subscribe to The Independent’s Sport YouTube channel for all the latest sports videos. Read More Chris Eubank Jr and Liam Smith rematch postponed for second time ‘Daylight robbery’: Vasiliy Lomachenko’s team plan to appeal Devin Haney defeat Katie Taylor’s long reign as boxing queen over despite heroic last stand Oleksandr Usyk promoter provides major update on Daniel Dubois fight Deontay Wilder claims Oleksandr Usyk is ‘a lot afraid’ of heavyweight clash Katie Taylor’s long reign as boxing queen over despite heroic last stand