Five CFL training camp storylines to watch

The CFL's training camps fully opened Sunday following camps for quarterbacks and rookies, and there are plenty of good storylines to watch across the league. Here are five in particular to keep an eye on.

Montreal's quarterback battle: The Alouettes have perhaps the league's most interesting quarterback situation, with veteran Kevin Glenn expected to duke it out with newly-acquired (at a high price) CFL rookie Vernon Adams Jr., former starters Rakeem Cato and Jonathan Crompton potentially waiting in the wings, and Canadian Brandon Bridge as an intriuging possibility. Glenn is the incumbent and the CFL's seventh-all-time leading passer, but he only joined the Alouettes shortly before the end of last season and he's 36. Adams has impressive potential, but has never played Canadian football. Meanwhile, Cato may be looking for a way out to move up the depth chart elsewhere (although there aren't a ton of really-desirable landing spots), Crompton's returning from injury and Bridge is trying to buck the roster rules that prevent most Canadians from sticking at quarterback. It all makes for a fascinating mix.

Saskatchewan's vaunted holdout: The Roughriders drafted Oklahoma tackle Josiah St. John first overall this year, and he has the potential to be a key ratio-buster for them, but he isn't in camp yet, reportedly holding out thanks to the low salary they offered him. Will they come to a deal with him, and if so, when? The longer it takes, the less camp and preseason time he'll have to adjust to the Canadian game, and the less of an impact he may make initially.

B.C.'s quarterback battle: Jonathon Jennings took over as the Lions' starter partway through last season, but struggled in their playoff game against Calgary and was replaced by Travis Lulay. When Lulay elected to sign a new deal with B.C. in the offseason, the belief was that he was doing so as a backup to the young and emerging Jennings, but GM/HC Wally Buono has said there will be a QB competition in camp. If Jennings struggles, Lulay might win back his former job, either at the start of the season or early in it. The Lions would likely prefer Jennings to shine and give them a quarterback for the future, but if that doesn't happen, Lulay gives them an interesting alternative.

Calgary's Canadian receiving corps: The Stampeders' high-powered passing offence will have to find some new targets this year, with receivers Eric Rogers and Jeff Fuller leaving for the NFL. Import veteran Marquay McDaniel may have more balls thrown his way, and Joe West and new addition Bakari Grant may help there too, but there are also plenty of Canadians who could step up, from vets Simon Charbonneau-Campeau and Anthony Parker to young guys like Kamar Jorden, Lemar Durant and rookie Juwan Brescacin. It may be particularly interesting to see if any of the young guys can earn a regular starting spot.

Toronto's QB health and backup battle: How healthy will Ricky Ray be, and will his work on mechanics this offseason pay off? Will the offensive line come together with the addition of Josh Bourke, and will they be able to keep him upright, too? There's potentially even less room for error there now that Trevor Harris has moved on to Ottawa. Will other QBs like Adrian McPherson, Logan Kilgore or Mitchell Gale be able to seize the backup spot, or will the Argos look to make a move for an external backup like Cato?